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pre algebra part 2
Question 1 (5 points)
Prices for the salad bar at some local restaurants are $8.95, $6.50, $12.25, $9.90, $11.00, $8.95, $ ...
pre algebra part 2
Question 1 (5 points)
Prices for the salad bar at some local restaurants are $8.95, $6.50, $12.25, $9.90, $11.00, $8.95, $10.75, and $6.50. Find the mean, median, and mode.
Question 1 options:
$9.35, $9.43, $6.50 and $8.95
$9.35, $10.45, no mode
$9.89, $9.43, $8.95
$9.89, $10.45, $6.50, and $8.95
Question 2 (5 points)
The spinner shown at right is spun once. Determine the probability of each outcome. Express each probability as a fraction and as a percent. Then describe the likelihood of the event. Write impossible, unlikely, equally likely, likely, or certain.
P(odd)Question 2 options:
; likely
; equally likely
; impossible
; certain
Question 3 (5 points)
Identify the sample as biased or unbiased and describe its type.
Tia surveyed every third house in the locality to determine the number of people who own pets.Question 3 options:
unbiased, simple random sample
biased, voluntary response sample
unbiased, systematic random sample
biased, convenience sample
Question 4 (5 points)
Find the median of the following set of data. Round to the nearest tenth if necessary.
26.1, 8.4, 11.4, 44.1, 32.3, 46, 41, 18.5, 20, 9.3, 19.6Question 4 options:
32.3
20
26.1
25.2
Question 5 (5 points)
Before starting a summer jobs program, the school board conducted a survey at various schools. They interviewed 30% of the high school students to know whether they would participate in the program. The results are shown in the graph.
Is this sampling method valid? If so, how many of 750 students of various high schools are likely to participate in this program?
Question 5 options:
no, 125
yes, 125
no, 625
yes, 625
Question 6 (5 points)
A number cube is tossed and the spinner below is spun. Find P(3 and C).
Question 6 options:
Question 7 (5 points)
Matthew has 8 dimes and 10 quarters in a box. Find the probability of drawing a dime.
Question 7 options:
Question 8 (5 points)
In baseball, Shintaro had 4 hits in his last 12 times at bat.
If Shintaro has 36 at bats in the next week, about how many hits will he have?Question 8 options:
24
12
10
9
Question 9 (5 points)
Find the mean of each set of data. Round to the nearest tenth if necessary.
14, 39, 27, 17, 17, 25, 10, 37Question 9 options:
23.3
21.3
24.8
21
Question 10 (5 points)
The table shows the number of campsite reservations at two different state parks over the past 10 weekends.
Number of Campsite Reservations
East Fork
32
36
39
39
43
45
50
51
56
80
Blue Ridge
38
40
45
47
51
52
60
62
69
73
Are there any outliers in the data for either state park? Question 10 options:
The data points 56 and 80 reservations are outliers for East Fork.
The data point 38 reservations is an outlier for Blue Ridge.
The data point 80 reservations is an outlier for East Fork.
There are no outliers.
Question 11 (5 points)
Find the range for the set of data.
101, 72, 115, 114, 117, 56, 101, 68, 111, 58, 51, 51, 90Question 11 options:
64
85
66
90
Question 12 (5 points)
Find the probability.
A marble is randomly selected from a bag containing 15 black, 12 white, and 6 clear marbles. Find P(not clear). Round to the nearest percent if necessary.
Question 12 options:
18%
82%
64%
55%
Question 13 (5 points)
Find the median, first quartile, third quartile, interquartile range, and any outliers for each set of data.
14.6, 28.1, 3.9, 7.1, 5.3, 30.9, 2.8, 6.5, 20.8, 16.4, 16.4, 27.1, 53.5, 12.5, 6.1 Question 13 options:
median: 14.6, Q1: 6.1, Q3: 27.1, IR: 21, outliers: none
median: 14.6, Q1: 6.1, Q3: 27.1, IR: 20, outliers: none
median: 14.6, Q1: 6.1, Q3: 27.1, IR: 21, outliers: 2.8
median: 14.6, Q1: 6.1, Q3: 25.1, IR: 21, outliers: none
Question 14 (5 points)
Nina’s quiz scores for the quarter are 90, 79, 5, 84, 95, 81, 87, and 94. Which measure of central tendency best represents the data shown in the table and why?
Question 14 options:
Since the data have many repeated values, the mode best represents the data.
Since there is an extreme value (5) and there are no big gaps in the middle of the data, the median best represents the data.
Since there are no extreme values, the mean best represents the data.
Since there are no extreme values and few repeated numbers, the median best represents the data.
Question 15 (5 points)
The frequency table shows Sam’s record in swimming.
Year
Number of medals
2008
6
2009
4
2010
1
2012
7
2013
4
Based on this record, what is the probability of picking up a medal won by him in the years 2009 or 2012.
Question 15 options:
2
Question 16 (5 points)
Lionel is apartment hunting. He makes a table of prospective apartment choices.
Apartment Rental PricesApartment ChoicePrice per Month ($)1630275536754765569066807675
Which measure of central tendency best represents the data shown in the table and why?
Question 16 options:
Since the data is grouped close together, the mode best represents the data.
Since there are no extreme values, the median best represents the data.
Since there are no extreme values and few repeated numbers, the mean best represents the data.
Since the value 675 occurs more than once, the mode best represents the data.
Question 17 (5 points)
The table shows the number of points scored by each team in a tournament.
Number of Points Scored
12
25
16
20
31
16
19
22
Find the mean absolute deviation of the number of points scored. Round to the nearest hundredth if necessary.
Question 17 options:
4.41
16
20.13
35.26
Question 18 (5 points)
Find the mode of each set of data.
33, 19, 15, 39, 39, 34, 24, 29Question 18 options:
31
29
32
39
Question 19 (5 points)
Find the probability.
A bag of sweets contains 20 gummy bears and 35 orange slices. One sweet is taken at random from the bag. Find P(gummy bear).Question 19 options:
Question 20 (5 points)
Find the median, first quartile, third quartile, interquartile range, and any outliers for each set of data.
111, 68, 93, 88, 74, 152, 119, 87, 88, 105, 84, 102, 151, 115, 112 Question 20 options:
median: 102, Q1: 87, Q3: 113, IR: 28, outliers: none
median: 102, Q1: 87, Q3: 115, IR: 28, outliers: 68
median: 102, Q1: 87, Q2: 115, IR: 28, outliers: none
median: 102, Q1: 87, Q3: 115, IR: 27, outliers: none
Submit Quiz0 of 20 questions saved
Homework Help-Probability and Statistics
Hello! I was wondering if you could help me with my probability and statistics homework. I am very behind because I have b ...
Homework Help-Probability and Statistics
Hello! I was wondering if you could help me with my probability and statistics homework. I am very behind because I have been sick and it is very hard for me to understand. Let me know if this works!Thanks.Landon
You do some research and put together a spreadsheet Click for more options of the data that contains the following information:
You are currently working at NCLEX Memorial Hospital in the Infectious Diseases Unit. Over the past few days, you have not ...
You do some research and put together a spreadsheet Click for more options of the data that contains the following information:
You are currently working at NCLEX Memorial Hospital in the Infectious Diseases Unit. Over the past few days, you have noticed an increase in patients admitted with a particular infectious disease. You believe that the ages of these patients play a critical role in the method used to treat the patients. You decide to speak to your manager, and together you work to use statistical analysis to look more closely at the ages of these patients.You do some research and put together a spreadsheet of the data that contains the following information:Client numberInfection disease statusAge of the patientYou are to put together a PowerPoint presentation that explains the analysis of your findings which you will submit to your manager. The presentation should contain all components of your findings. For review, the components of the report should include:Brief overview of the scenario and variables in the data setDiscussion, calculation, and interpretation of the mean, median, mode, range, standard deviation, and varianceDiscussion, construction, and interpretation of the 95% confidence intervalExplanation of the full hypothesis testConclusionThe calculations should be performed in your spreadsheet that you will also submit to your manager. You can find additional information on what to add to your PowerPoint presentation in this Word document . Use the questions in the worksheet as your guide for the contents of your presentation.For your final deliverable, submit your PowerPoint presentation and the Excel workbook showing your work. Do not submit your Word document.
University Of Cumberlands Research Project Discussion
QUESTION 1Data Set 1-3For her research project, Susan gathered data from 76 students who filled out a questionnaire about ...
University Of Cumberlands Research Project Discussion
QUESTION 1Data Set 1-3For her research project, Susan gathered data from 76 students who filled out a questionnaire about exercise and GPA. From the exercise portion, students were classified as sedentary, moderate, or vigorous exercisers. GPA’s were expressed in the usual decimal form. In Data Set 1-3, the number of levels of the independent variable for Susan’s experiment wasa.2;b.3;c.4;d.none of the other alternatives; answer is ____e.76;1 points QUESTION 2Data Set 1-7In Blaine’s experiment participants tasted three different picante sauces and indicated their favorite. Everyone participated after supper on Monday or Tuesday. After the participants were classified as preferring hot, medium, or mild sauce, they filled out the White Risk Inventory, a measure that yields a score of 0 to 15 and indicates how likely a person is to engage in risky adventures. The number of levels of the independent variable in Data Set 1-7 isa.cannot be determined from the information given.b.15;c.2;d.3;1 points QUESTION 3Data Set 1-3For her research project, Susan gathered data from 76 students who filled out a questionnaire about exercise and GPA. From the exercise portion, students were classified as sedentary, moderate, or vigorous exercisers. GPA’s were expressed in the usual decimal form. The independent variable for Data Set 1-3 wasa.exercise classification.b.the number of students who filled out the questionnaire;c.GPA;d.kind of project;1 points QUESTION 4In an experiment on the effect of sleep on memory, the independent variable might bea.recall score on a testb.gender of the experimenterc.number of hours of sleepd.gender of the subjects1 points QUESTION 5Your text said that the end point of analyzing a data set isa.a feeling of satisfactionb.a story that explains relationshipsc.a quantitative home based.a foundation for future research1 points QUESTION 6Epistemology deals with the nature ofa.none of the other alternatives are correctb.philosophyc.knowledged.psychology1 points QUESTION 7Data Set 1-7In Blaine’s experiment participants tasted three different picante sauces and indicated their favorite. Everyone participated after supper on Monday or Tuesday. After the participants were classified as preferring hot, medium, or mild sauce, they filled out the White Risk Inventory, a measure that yields a score of 0 to 15 and indicates how likely a person is to engage in risky adventures. The dependent variable in Blaine’s experiment (Data Set 1-7) isa.number of people who participated.b.score on the White Risk Inventory;c.day of the week they participated;d.choice of picante sauce;1 points QUESTION 8You never have a lower and an upper limit for a(n)a.categorical variableb.score on the ratio scalec.dependent variabled.IQ score1 points QUESTION 9A story that explains relationships is, according to your text,a.the categorical counterpart to a quantitative analysisb.the best hypothesis to use as a starting pointc.the end point of analyzing a data setd.a hindrance to an objective analysis of a data set1 points QUESTION 10Which of the following is not one of the four categories of statisticians described by Kirk?a.computer experts who use computers to find statistics answersb.those who are able to understand material that is presented statisticallyc.mathematical statisticians who develop new techniquesd.professional statisticians who help others1 points QUESTION 11Removing the extreme scores from both tails of the distribution before calculating a central tendency statistics produces aa.truncated meanb.re-tooled meanc.trimmed meand.two-tailed mean1 points QUESTION 12In which situation would the mean be an appropriate measure of central tendency?a.None of the other alternatives are correctb.Most of the scores are near the minimum, a few are in the middle range, and there are almost none near the maximumc.The data categories in the soil analysis are: 0-2 ppm, 3-5 ppm, 6-8 ppm, 9-11 ppm, and over 11 ppmd.We have frequency data on cows, horses, mules, and goats1 points QUESTION 13Data Set 3-1 A student was interested in the structure of the families in the U.S. He sampled 29 of his 330 classmates asking the question, “How many children are there in your family?” He compiled the answers into a simple frequency distribution: C ¦ 7 1 5 2 4 3 3 6 2 10 1 7 Refer to Data Set 3-1. The mode isa.7b.8c.10d.21 points QUESTION 14Which of the following was not listed as a requirement for a fairly complete understanding of a distribution?a.Normalityb.Central tendencyc.Formd.Variability1 points QUESTION 15The median of 4, 3, 4, 2, 3, 4, 4, isa.4.5b.3.5c.none of the other alternatives are correct; the answer is _________d.31 points QUESTION 16The mean temperature for January was 30 °F. In February the mean was 25 °F and for March the mean was 35°F. The weighted mean for these three months isa.30°Fb.less than 30°Fc.greater than 30°F1 points QUESTION 17Usually, a frequency distribution with a mean of 100 and a median of 90 isa.negatively skewedb.positively skewedc.symmetricald.cannot be determined without knowing the mode1 points QUESTION 18The situation that prompts the calculation of a weighted mean is thata.the distribution is severely skewedb.the scale of measurement is not specifiedc.the distribution has humps in both tailsd.several samples have different N’s1 points QUESTION 19Which of the following was not listed as a requirement for a fairly complete understanding of a distribution?a.Variabilityb.Densityc.Formd.Central tendency1 points QUESTION 20For a negatively skewed curve, the usual case with continuous data is thata.low scores are more frequent than high scores and the median is greater than the meanb.low scores are more frequent than high scores and the mean is greater than the medianc.high scores are more frequent than low scores and the mean is greater than the mediand.high scores are more frequent than low scores and the median is greater than the mean1 points Click Save and Submit to save and submit. Click Save All Answers to save all answers.
Question if you would like??
A pharmaceutical company conducts a study to evaluate the relationship
between length of time taking drug X and size of ...
Question if you would like??
A pharmaceutical company conducts a study to evaluate the relationship
between length of time taking drug X and size of tumor. They enlist 2400
patients with the same type of benign tumor who have been on drug X for
varying lengths of time (measured in days). They find that the longer
the patient is on the drug, the smaller the patient’s tumor size
(measured in volume). In fact, they report the results as r(2398) = -.21, with significance of p < .0001. What is your initial perception of this information? What are other ways, beyond looking at the p-value alone, you could use to try to interpret what this outcome of r(2398)
= -.21 tells us about the relationship between length of time taking
drug X and the size of the tumor? Support your responses.250 words plus reference
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pre algebra part 2
Question 1 (5 points)
Prices for the salad bar at some local restaurants are $8.95, $6.50, $12.25, $9.90, $11.00, $8.95, $ ...
pre algebra part 2
Question 1 (5 points)
Prices for the salad bar at some local restaurants are $8.95, $6.50, $12.25, $9.90, $11.00, $8.95, $10.75, and $6.50. Find the mean, median, and mode.
Question 1 options:
$9.35, $9.43, $6.50 and $8.95
$9.35, $10.45, no mode
$9.89, $9.43, $8.95
$9.89, $10.45, $6.50, and $8.95
Question 2 (5 points)
The spinner shown at right is spun once. Determine the probability of each outcome. Express each probability as a fraction and as a percent. Then describe the likelihood of the event. Write impossible, unlikely, equally likely, likely, or certain.
P(odd)Question 2 options:
; likely
; equally likely
; impossible
; certain
Question 3 (5 points)
Identify the sample as biased or unbiased and describe its type.
Tia surveyed every third house in the locality to determine the number of people who own pets.Question 3 options:
unbiased, simple random sample
biased, voluntary response sample
unbiased, systematic random sample
biased, convenience sample
Question 4 (5 points)
Find the median of the following set of data. Round to the nearest tenth if necessary.
26.1, 8.4, 11.4, 44.1, 32.3, 46, 41, 18.5, 20, 9.3, 19.6Question 4 options:
32.3
20
26.1
25.2
Question 5 (5 points)
Before starting a summer jobs program, the school board conducted a survey at various schools. They interviewed 30% of the high school students to know whether they would participate in the program. The results are shown in the graph.
Is this sampling method valid? If so, how many of 750 students of various high schools are likely to participate in this program?
Question 5 options:
no, 125
yes, 125
no, 625
yes, 625
Question 6 (5 points)
A number cube is tossed and the spinner below is spun. Find P(3 and C).
Question 6 options:
Question 7 (5 points)
Matthew has 8 dimes and 10 quarters in a box. Find the probability of drawing a dime.
Question 7 options:
Question 8 (5 points)
In baseball, Shintaro had 4 hits in his last 12 times at bat.
If Shintaro has 36 at bats in the next week, about how many hits will he have?Question 8 options:
24
12
10
9
Question 9 (5 points)
Find the mean of each set of data. Round to the nearest tenth if necessary.
14, 39, 27, 17, 17, 25, 10, 37Question 9 options:
23.3
21.3
24.8
21
Question 10 (5 points)
The table shows the number of campsite reservations at two different state parks over the past 10 weekends.
Number of Campsite Reservations
East Fork
32
36
39
39
43
45
50
51
56
80
Blue Ridge
38
40
45
47
51
52
60
62
69
73
Are there any outliers in the data for either state park? Question 10 options:
The data points 56 and 80 reservations are outliers for East Fork.
The data point 38 reservations is an outlier for Blue Ridge.
The data point 80 reservations is an outlier for East Fork.
There are no outliers.
Question 11 (5 points)
Find the range for the set of data.
101, 72, 115, 114, 117, 56, 101, 68, 111, 58, 51, 51, 90Question 11 options:
64
85
66
90
Question 12 (5 points)
Find the probability.
A marble is randomly selected from a bag containing 15 black, 12 white, and 6 clear marbles. Find P(not clear). Round to the nearest percent if necessary.
Question 12 options:
18%
82%
64%
55%
Question 13 (5 points)
Find the median, first quartile, third quartile, interquartile range, and any outliers for each set of data.
14.6, 28.1, 3.9, 7.1, 5.3, 30.9, 2.8, 6.5, 20.8, 16.4, 16.4, 27.1, 53.5, 12.5, 6.1 Question 13 options:
median: 14.6, Q1: 6.1, Q3: 27.1, IR: 21, outliers: none
median: 14.6, Q1: 6.1, Q3: 27.1, IR: 20, outliers: none
median: 14.6, Q1: 6.1, Q3: 27.1, IR: 21, outliers: 2.8
median: 14.6, Q1: 6.1, Q3: 25.1, IR: 21, outliers: none
Question 14 (5 points)
Nina’s quiz scores for the quarter are 90, 79, 5, 84, 95, 81, 87, and 94. Which measure of central tendency best represents the data shown in the table and why?
Question 14 options:
Since the data have many repeated values, the mode best represents the data.
Since there is an extreme value (5) and there are no big gaps in the middle of the data, the median best represents the data.
Since there are no extreme values, the mean best represents the data.
Since there are no extreme values and few repeated numbers, the median best represents the data.
Question 15 (5 points)
The frequency table shows Sam’s record in swimming.
Year
Number of medals
2008
6
2009
4
2010
1
2012
7
2013
4
Based on this record, what is the probability of picking up a medal won by him in the years 2009 or 2012.
Question 15 options:
2
Question 16 (5 points)
Lionel is apartment hunting. He makes a table of prospective apartment choices.
Apartment Rental PricesApartment ChoicePrice per Month ($)1630275536754765569066807675
Which measure of central tendency best represents the data shown in the table and why?
Question 16 options:
Since the data is grouped close together, the mode best represents the data.
Since there are no extreme values, the median best represents the data.
Since there are no extreme values and few repeated numbers, the mean best represents the data.
Since the value 675 occurs more than once, the mode best represents the data.
Question 17 (5 points)
The table shows the number of points scored by each team in a tournament.
Number of Points Scored
12
25
16
20
31
16
19
22
Find the mean absolute deviation of the number of points scored. Round to the nearest hundredth if necessary.
Question 17 options:
4.41
16
20.13
35.26
Question 18 (5 points)
Find the mode of each set of data.
33, 19, 15, 39, 39, 34, 24, 29Question 18 options:
31
29
32
39
Question 19 (5 points)
Find the probability.
A bag of sweets contains 20 gummy bears and 35 orange slices. One sweet is taken at random from the bag. Find P(gummy bear).Question 19 options:
Question 20 (5 points)
Find the median, first quartile, third quartile, interquartile range, and any outliers for each set of data.
111, 68, 93, 88, 74, 152, 119, 87, 88, 105, 84, 102, 151, 115, 112 Question 20 options:
median: 102, Q1: 87, Q3: 113, IR: 28, outliers: none
median: 102, Q1: 87, Q3: 115, IR: 28, outliers: 68
median: 102, Q1: 87, Q2: 115, IR: 28, outliers: none
median: 102, Q1: 87, Q3: 115, IR: 27, outliers: none
Submit Quiz0 of 20 questions saved
Homework Help-Probability and Statistics
Hello! I was wondering if you could help me with my probability and statistics homework. I am very behind because I have b ...
Homework Help-Probability and Statistics
Hello! I was wondering if you could help me with my probability and statistics homework. I am very behind because I have been sick and it is very hard for me to understand. Let me know if this works!Thanks.Landon
You do some research and put together a spreadsheet Click for more options of the data that contains the following information:
You are currently working at NCLEX Memorial Hospital in the Infectious Diseases Unit. Over the past few days, you have not ...
You do some research and put together a spreadsheet Click for more options of the data that contains the following information:
You are currently working at NCLEX Memorial Hospital in the Infectious Diseases Unit. Over the past few days, you have noticed an increase in patients admitted with a particular infectious disease. You believe that the ages of these patients play a critical role in the method used to treat the patients. You decide to speak to your manager, and together you work to use statistical analysis to look more closely at the ages of these patients.You do some research and put together a spreadsheet of the data that contains the following information:Client numberInfection disease statusAge of the patientYou are to put together a PowerPoint presentation that explains the analysis of your findings which you will submit to your manager. The presentation should contain all components of your findings. For review, the components of the report should include:Brief overview of the scenario and variables in the data setDiscussion, calculation, and interpretation of the mean, median, mode, range, standard deviation, and varianceDiscussion, construction, and interpretation of the 95% confidence intervalExplanation of the full hypothesis testConclusionThe calculations should be performed in your spreadsheet that you will also submit to your manager. You can find additional information on what to add to your PowerPoint presentation in this Word document . Use the questions in the worksheet as your guide for the contents of your presentation.For your final deliverable, submit your PowerPoint presentation and the Excel workbook showing your work. Do not submit your Word document.
University Of Cumberlands Research Project Discussion
QUESTION 1Data Set 1-3For her research project, Susan gathered data from 76 students who filled out a questionnaire about ...
University Of Cumberlands Research Project Discussion
QUESTION 1Data Set 1-3For her research project, Susan gathered data from 76 students who filled out a questionnaire about exercise and GPA. From the exercise portion, students were classified as sedentary, moderate, or vigorous exercisers. GPA’s were expressed in the usual decimal form. In Data Set 1-3, the number of levels of the independent variable for Susan’s experiment wasa.2;b.3;c.4;d.none of the other alternatives; answer is ____e.76;1 points QUESTION 2Data Set 1-7In Blaine’s experiment participants tasted three different picante sauces and indicated their favorite. Everyone participated after supper on Monday or Tuesday. After the participants were classified as preferring hot, medium, or mild sauce, they filled out the White Risk Inventory, a measure that yields a score of 0 to 15 and indicates how likely a person is to engage in risky adventures. The number of levels of the independent variable in Data Set 1-7 isa.cannot be determined from the information given.b.15;c.2;d.3;1 points QUESTION 3Data Set 1-3For her research project, Susan gathered data from 76 students who filled out a questionnaire about exercise and GPA. From the exercise portion, students were classified as sedentary, moderate, or vigorous exercisers. GPA’s were expressed in the usual decimal form. The independent variable for Data Set 1-3 wasa.exercise classification.b.the number of students who filled out the questionnaire;c.GPA;d.kind of project;1 points QUESTION 4In an experiment on the effect of sleep on memory, the independent variable might bea.recall score on a testb.gender of the experimenterc.number of hours of sleepd.gender of the subjects1 points QUESTION 5Your text said that the end point of analyzing a data set isa.a feeling of satisfactionb.a story that explains relationshipsc.a quantitative home based.a foundation for future research1 points QUESTION 6Epistemology deals with the nature ofa.none of the other alternatives are correctb.philosophyc.knowledged.psychology1 points QUESTION 7Data Set 1-7In Blaine’s experiment participants tasted three different picante sauces and indicated their favorite. Everyone participated after supper on Monday or Tuesday. After the participants were classified as preferring hot, medium, or mild sauce, they filled out the White Risk Inventory, a measure that yields a score of 0 to 15 and indicates how likely a person is to engage in risky adventures. The dependent variable in Blaine’s experiment (Data Set 1-7) isa.number of people who participated.b.score on the White Risk Inventory;c.day of the week they participated;d.choice of picante sauce;1 points QUESTION 8You never have a lower and an upper limit for a(n)a.categorical variableb.score on the ratio scalec.dependent variabled.IQ score1 points QUESTION 9A story that explains relationships is, according to your text,a.the categorical counterpart to a quantitative analysisb.the best hypothesis to use as a starting pointc.the end point of analyzing a data setd.a hindrance to an objective analysis of a data set1 points QUESTION 10Which of the following is not one of the four categories of statisticians described by Kirk?a.computer experts who use computers to find statistics answersb.those who are able to understand material that is presented statisticallyc.mathematical statisticians who develop new techniquesd.professional statisticians who help others1 points QUESTION 11Removing the extreme scores from both tails of the distribution before calculating a central tendency statistics produces aa.truncated meanb.re-tooled meanc.trimmed meand.two-tailed mean1 points QUESTION 12In which situation would the mean be an appropriate measure of central tendency?a.None of the other alternatives are correctb.Most of the scores are near the minimum, a few are in the middle range, and there are almost none near the maximumc.The data categories in the soil analysis are: 0-2 ppm, 3-5 ppm, 6-8 ppm, 9-11 ppm, and over 11 ppmd.We have frequency data on cows, horses, mules, and goats1 points QUESTION 13Data Set 3-1 A student was interested in the structure of the families in the U.S. He sampled 29 of his 330 classmates asking the question, “How many children are there in your family?” He compiled the answers into a simple frequency distribution: C ¦ 7 1 5 2 4 3 3 6 2 10 1 7 Refer to Data Set 3-1. The mode isa.7b.8c.10d.21 points QUESTION 14Which of the following was not listed as a requirement for a fairly complete understanding of a distribution?a.Normalityb.Central tendencyc.Formd.Variability1 points QUESTION 15The median of 4, 3, 4, 2, 3, 4, 4, isa.4.5b.3.5c.none of the other alternatives are correct; the answer is _________d.31 points QUESTION 16The mean temperature for January was 30 °F. In February the mean was 25 °F and for March the mean was 35°F. The weighted mean for these three months isa.30°Fb.less than 30°Fc.greater than 30°F1 points QUESTION 17Usually, a frequency distribution with a mean of 100 and a median of 90 isa.negatively skewedb.positively skewedc.symmetricald.cannot be determined without knowing the mode1 points QUESTION 18The situation that prompts the calculation of a weighted mean is thata.the distribution is severely skewedb.the scale of measurement is not specifiedc.the distribution has humps in both tailsd.several samples have different N’s1 points QUESTION 19Which of the following was not listed as a requirement for a fairly complete understanding of a distribution?a.Variabilityb.Densityc.Formd.Central tendency1 points QUESTION 20For a negatively skewed curve, the usual case with continuous data is thata.low scores are more frequent than high scores and the median is greater than the meanb.low scores are more frequent than high scores and the mean is greater than the medianc.high scores are more frequent than low scores and the mean is greater than the mediand.high scores are more frequent than low scores and the median is greater than the mean1 points Click Save and Submit to save and submit. 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Question if you would like??
A pharmaceutical company conducts a study to evaluate the relationship
between length of time taking drug X and size of ...
Question if you would like??
A pharmaceutical company conducts a study to evaluate the relationship
between length of time taking drug X and size of tumor. They enlist 2400
patients with the same type of benign tumor who have been on drug X for
varying lengths of time (measured in days). They find that the longer
the patient is on the drug, the smaller the patient’s tumor size
(measured in volume). In fact, they report the results as r(2398) = -.21, with significance of p < .0001. What is your initial perception of this information? What are other ways, beyond looking at the p-value alone, you could use to try to interpret what this outcome of r(2398)
= -.21 tells us about the relationship between length of time taking
drug X and the size of the tumor? Support your responses.250 words plus reference
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