What is the Probability
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a city council consists of eight Democrats and six Republicans. If a committee of five people is selected, find the probability of selecting two Democrats and three Republicans.
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Arkansas Northeastern College Week 6 Management of Transportation Information Essay
This final project consists of two parts.A transshipment modelA quadratic programming model.
Arkansas Northeastern College Week 6 Management of Transportation Information Essay
This final project consists of two parts.A transshipment modelA quadratic programming model.
MTH 250 Norfolk Compute the Correct Critical Value for The Problem Math Questions
MTH 250 â PROJECT Due by 5/11/2021
Please answer all of the following questions. Be neat, show your work, use full sent ...
MTH 250 Norfolk Compute the Correct Critical Value for The Problem Math Questions
MTH 250 â PROJECT Due by 5/11/2021
Please answer all of the following questions. Be neat, show your work, use full sentences and explain
your answers. Please professionally present your project. Use Excel to create your graphs.
You can work with a partner if you want. If you plan to work with a partner, you must let me know at
least a week before the project's due date. If you work with a partner, you can turn in just one
project.
Please do your own work, and do not copy anyone elseâs project. If you have trouble obtaining the data,
let me know.
PART 1: M&Mâs
For this part of the project, you will need to obtain a bag of M&Ms and count how many M&Ms there
are of each color. (If you donât want to do M&Ms you could do Skittles, or count how many of each type of nut are in a
container of mixed nuts. If you have another similar idea that you would like to do, let me know so I can approve it)
1. What is the variable we are studying? Is this variable quantitative or qualitative? If the variable
is quantitative, is it continuous or discrete?
2. Create a frequency distribution for the number of M&Mâs of each color.
3. Create a relative frequency distribution for the number of M&Mâs of each color.
4. What is the mode?
5. Create a graph to display this data. Make sure your graph is labeled appropriately. (You can
select the type of graph you think is appropriate)
PART 2: Cereal
For this part of the project, you should go to the grocery store (or online store..) and look at the
nutrition facts for many different boxes of cereal. I would recommend collecting data on at least 20
types of cereal.
For each cereal please make a table of the following data:
(If the cereal lists nutrition information for being served with milk, please just use the nutrition information for plain cereal.)
Name of Cereal Grams of Total Carbohydrates Grams of Fiber
Please include the table with your project.
For each of these two variables:
1. Is the variable qualitative or quantitative? If the variable is quantitative, is it continuous or
discrete?
2. Find the mean, median, sample standard deviation, and IQR. Find the five-number summary.
3. Calculate whether there are any outliers. If there are outliers, explain how you could tell these
values are outliers. If there are no outliers, explain how you decided there are no outliers.
4. Create a histogram. (You can group data in classes) Make sure your graph is labeled
appropriately.
5. Create a boxplot.
6. Looking at the histogram and/or boxplot, what shape would you say that the data has? (If the
shape is kind of awkward, thatâs okay. Give your best analysis of it.)
7. If you had to report on the typical amount of carbohydrates and the typical amount of fiber in
a serving of cereal, what measure of the center would you use for each one? Why?
Two more problems:
8. A high-fiber cereal boasts that it contains 20 g of fiber. A low-carb cereal has just 14g of
carbohydrates. Use the means and standard deviations you calculated to find a z-score for each
cereal of these cereals. Based on these z-scores, which cereal is more exceptional?
9. For this problem, choose whichever of the variables was approximately bell-shaped.
If both were bell-shaped, choose either one; If neither one is bell-shaped choose the closest one to bell-shaped and we will pretend it was bell-shaped.
Use empirical rule to state the values that approximately 68%, 95%, and 99.7% of cereals
would fall between.
Part III: Confidence Interval
This part of your project will be to construct confidence intervals and perform hypothesis tests without using the
calculator to do all the work. Also, you must be able to interpret your results. Please round answers to 3 decimal
places.
Not Allowed: Do not use anything in the STAT > > TESTS menu Allowed: You can use 1-Var Stats.
10. Confidence Interval
In a study of maximal aerobic capacity, 12 women had their blood plasma volume measured. The following
data is their blood plasma volumes in liters.
3.75 2.89 2.70 3.12 2.61 3.85
2.96 3.87 3.15 2.96 3.52 3.12
a. Calculate the mean and sample standard deviation of the womenâs blood plasma volume. (You can
use 1-Var Stats on your calculator)
b. We want to find a 90% confidence interval. What is the critical value đđ¶/đ? Explain how you found it.
c. Construct a 90% confidence interval for the mean womenâs blood plasma volume by using the
formula. Show your work.
d. Write a sentence to interpret the confidence interval that you constructed.
e. We would like to redo this study with better accuracy. We would like the margin of error to be no
more than 0.1 liters. What sample size should we use for our new study?
Part IV: Hypothesis
11. Hypothesis Test
The ToothBright Toothpaste Company claims that 4 out of 5 dentists (80% of dentists) recommend their
toothpaste to patients. You think that the proportion of dentists who recommend ToothBright is less
than that, so you contact 100 randomly selected dentists across the country to ask if they recommend
ToothBright toothpaste to their patients, and 71 of them said yes.
Perform your hypothesis test at the α=.05 level of significance.
a. State the null and alternative hypotheses.
b. Calculate the test statistic. Show your work.
c. What is the correct critical value (or values) for the problem? Explain how you found it.
d. Mark the Critical Value(s) and the Test Statistic on the curve. Also, indicate clearly which area is
the critical region.
e. Is your test statistic in the critical region?
f. Are you going to reject or fail to reject the null hypothesis? How did you decide?
g. State your conclusion. (without using words like ârejectâ and âhypothesisâ)
Math Reason
One hundred sixty people were surveyed and asked if they believed in UFOs, ghosts, and Bigfoot. 42 believed in ...
Math Reason
One hundred sixty people were surveyed and asked if they believed in UFOs, ghosts, and Bigfoot. 42 believed in UFOs 45 believed in ghosts 21 believed in Bigfoot 11 believed in UFOs and ghosts 6 believed in ghosts and Bigfoot 4 believed in UFOs and Bigfoot 2 believed in all three How many people surveyed believed in at least one of these things?Show your work by creating and sharing a appropriate Venn diagram.You can use the following free web tool accessed at http://www.classtools.net/education-games-php/venn_intro to create your Venn diagram and simply copy and paste the URL in your post by using the "Insert Quicklink" button:
AIU Independent Sample T Tests and Related Samples T Tests Difference Discusion
Discussion (Due in 2 days please post when available)Create a comprehensive explanation of the differences between indepen ...
AIU Independent Sample T Tests and Related Samples T Tests Difference Discusion
Discussion (Due in 2 days please post when available)Create a comprehensive explanation of the differences between independent sample t-tests andrelated samples t-tests. Cite examples of how each t-test type may be used by Teton Grand.Be sure that you are posting in a client-ready format, using professional and appropriate languagefor talking to an organization. When responding to your peers react to their posts highlightinganything you find particularly interesting or hard to understand.Assignment (Due in 5 days)Run a t-test on a hypothesis you want to explore about Teton Grand's data, i.e. differences in locations,gender, etc.Teton Grand would like an explanation of the purpose and use of t-tests using a sample of their actualdata.Your assignment should include steps on how to run t-tests as well as clear interpretation of the findingsof the analysis you ran. The assignment should function as a âone stop shopâ for the intern to learnabout t-tests and be able to execute them on their own.This can be in a video format, a presentation, or a step-by-step handout. It must be client ready,professionally formatted, and easy to understand. If creating a video, length should be approximately 5-10 minutes. If creating a presentation, the length should be approximately 10 slides. Your submissionshould adhere to the APA format and guidelines.
PSY/315 - Statistical reasoning in Psychology Worksheet homework help
Provide a response to the following questions. Written responses should be at least 30 to 45 words each.
PSY/315 - Statistical reasoning in Psychology Worksheet homework help
Provide a response to the following questions. Written responses should be at least 30 to 45 words each.
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Arkansas Northeastern College Week 6 Management of Transportation Information Essay
This final project consists of two parts.A transshipment modelA quadratic programming model.
Arkansas Northeastern College Week 6 Management of Transportation Information Essay
This final project consists of two parts.A transshipment modelA quadratic programming model.
MTH 250 Norfolk Compute the Correct Critical Value for The Problem Math Questions
MTH 250 â PROJECT Due by 5/11/2021
Please answer all of the following questions. Be neat, show your work, use full sent ...
MTH 250 Norfolk Compute the Correct Critical Value for The Problem Math Questions
MTH 250 â PROJECT Due by 5/11/2021
Please answer all of the following questions. Be neat, show your work, use full sentences and explain
your answers. Please professionally present your project. Use Excel to create your graphs.
You can work with a partner if you want. If you plan to work with a partner, you must let me know at
least a week before the project's due date. If you work with a partner, you can turn in just one
project.
Please do your own work, and do not copy anyone elseâs project. If you have trouble obtaining the data,
let me know.
PART 1: M&Mâs
For this part of the project, you will need to obtain a bag of M&Ms and count how many M&Ms there
are of each color. (If you donât want to do M&Ms you could do Skittles, or count how many of each type of nut are in a
container of mixed nuts. If you have another similar idea that you would like to do, let me know so I can approve it)
1. What is the variable we are studying? Is this variable quantitative or qualitative? If the variable
is quantitative, is it continuous or discrete?
2. Create a frequency distribution for the number of M&Mâs of each color.
3. Create a relative frequency distribution for the number of M&Mâs of each color.
4. What is the mode?
5. Create a graph to display this data. Make sure your graph is labeled appropriately. (You can
select the type of graph you think is appropriate)
PART 2: Cereal
For this part of the project, you should go to the grocery store (or online store..) and look at the
nutrition facts for many different boxes of cereal. I would recommend collecting data on at least 20
types of cereal.
For each cereal please make a table of the following data:
(If the cereal lists nutrition information for being served with milk, please just use the nutrition information for plain cereal.)
Name of Cereal Grams of Total Carbohydrates Grams of Fiber
Please include the table with your project.
For each of these two variables:
1. Is the variable qualitative or quantitative? If the variable is quantitative, is it continuous or
discrete?
2. Find the mean, median, sample standard deviation, and IQR. Find the five-number summary.
3. Calculate whether there are any outliers. If there are outliers, explain how you could tell these
values are outliers. If there are no outliers, explain how you decided there are no outliers.
4. Create a histogram. (You can group data in classes) Make sure your graph is labeled
appropriately.
5. Create a boxplot.
6. Looking at the histogram and/or boxplot, what shape would you say that the data has? (If the
shape is kind of awkward, thatâs okay. Give your best analysis of it.)
7. If you had to report on the typical amount of carbohydrates and the typical amount of fiber in
a serving of cereal, what measure of the center would you use for each one? Why?
Two more problems:
8. A high-fiber cereal boasts that it contains 20 g of fiber. A low-carb cereal has just 14g of
carbohydrates. Use the means and standard deviations you calculated to find a z-score for each
cereal of these cereals. Based on these z-scores, which cereal is more exceptional?
9. For this problem, choose whichever of the variables was approximately bell-shaped.
If both were bell-shaped, choose either one; If neither one is bell-shaped choose the closest one to bell-shaped and we will pretend it was bell-shaped.
Use empirical rule to state the values that approximately 68%, 95%, and 99.7% of cereals
would fall between.
Part III: Confidence Interval
This part of your project will be to construct confidence intervals and perform hypothesis tests without using the
calculator to do all the work. Also, you must be able to interpret your results. Please round answers to 3 decimal
places.
Not Allowed: Do not use anything in the STAT > > TESTS menu Allowed: You can use 1-Var Stats.
10. Confidence Interval
In a study of maximal aerobic capacity, 12 women had their blood plasma volume measured. The following
data is their blood plasma volumes in liters.
3.75 2.89 2.70 3.12 2.61 3.85
2.96 3.87 3.15 2.96 3.52 3.12
a. Calculate the mean and sample standard deviation of the womenâs blood plasma volume. (You can
use 1-Var Stats on your calculator)
b. We want to find a 90% confidence interval. What is the critical value đđ¶/đ? Explain how you found it.
c. Construct a 90% confidence interval for the mean womenâs blood plasma volume by using the
formula. Show your work.
d. Write a sentence to interpret the confidence interval that you constructed.
e. We would like to redo this study with better accuracy. We would like the margin of error to be no
more than 0.1 liters. What sample size should we use for our new study?
Part IV: Hypothesis
11. Hypothesis Test
The ToothBright Toothpaste Company claims that 4 out of 5 dentists (80% of dentists) recommend their
toothpaste to patients. You think that the proportion of dentists who recommend ToothBright is less
than that, so you contact 100 randomly selected dentists across the country to ask if they recommend
ToothBright toothpaste to their patients, and 71 of them said yes.
Perform your hypothesis test at the α=.05 level of significance.
a. State the null and alternative hypotheses.
b. Calculate the test statistic. Show your work.
c. What is the correct critical value (or values) for the problem? Explain how you found it.
d. Mark the Critical Value(s) and the Test Statistic on the curve. Also, indicate clearly which area is
the critical region.
e. Is your test statistic in the critical region?
f. Are you going to reject or fail to reject the null hypothesis? How did you decide?
g. State your conclusion. (without using words like ârejectâ and âhypothesisâ)
Math Reason
One hundred sixty people were surveyed and asked if they believed in UFOs, ghosts, and Bigfoot. 42 believed in ...
Math Reason
One hundred sixty people were surveyed and asked if they believed in UFOs, ghosts, and Bigfoot. 42 believed in UFOs 45 believed in ghosts 21 believed in Bigfoot 11 believed in UFOs and ghosts 6 believed in ghosts and Bigfoot 4 believed in UFOs and Bigfoot 2 believed in all three How many people surveyed believed in at least one of these things?Show your work by creating and sharing a appropriate Venn diagram.You can use the following free web tool accessed at http://www.classtools.net/education-games-php/venn_intro to create your Venn diagram and simply copy and paste the URL in your post by using the "Insert Quicklink" button:
AIU Independent Sample T Tests and Related Samples T Tests Difference Discusion
Discussion (Due in 2 days please post when available)Create a comprehensive explanation of the differences between indepen ...
AIU Independent Sample T Tests and Related Samples T Tests Difference Discusion
Discussion (Due in 2 days please post when available)Create a comprehensive explanation of the differences between independent sample t-tests andrelated samples t-tests. Cite examples of how each t-test type may be used by Teton Grand.Be sure that you are posting in a client-ready format, using professional and appropriate languagefor talking to an organization. When responding to your peers react to their posts highlightinganything you find particularly interesting or hard to understand.Assignment (Due in 5 days)Run a t-test on a hypothesis you want to explore about Teton Grand's data, i.e. differences in locations,gender, etc.Teton Grand would like an explanation of the purpose and use of t-tests using a sample of their actualdata.Your assignment should include steps on how to run t-tests as well as clear interpretation of the findingsof the analysis you ran. The assignment should function as a âone stop shopâ for the intern to learnabout t-tests and be able to execute them on their own.This can be in a video format, a presentation, or a step-by-step handout. It must be client ready,professionally formatted, and easy to understand. If creating a video, length should be approximately 5-10 minutes. If creating a presentation, the length should be approximately 10 slides. Your submissionshould adhere to the APA format and guidelines.
PSY/315 - Statistical reasoning in Psychology Worksheet homework help
Provide a response to the following questions. Written responses should be at least 30 to 45 words each.
PSY/315 - Statistical reasoning in Psychology Worksheet homework help
Provide a response to the following questions. Written responses should be at least 30 to 45 words each.
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