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Central Tendency and Variability
Follow these steps:Download the Measures of Central Tendency and Variability document (PDF). (I attached it) Create a new ...
Central Tendency and Variability
Follow these steps:Download the Measures of Central Tendency and Variability document (PDF). (I attached it) Create a new document that contains your solutions to the problems.Save the document with a descriptive file name that includes your last name and first initial (example: SmithJ_measures.doc).Youll need access to my statcruch account you can use the following to complete it...Link: statcrunch.comUser: thakorjPassword: Jayr5214 (Capital J) Supplemental StatCrunch Tutorial VideosThe following videos on Measures of Central Tendency will be useful in finishing this activity:Calculating Summary Statistics in StatCrunch (4:23 YouTube) (Links to an external site.)Links to an external site.3_2_2_standard_deviation_StatCrunch.mov (3:00 YouTube) (Links to an external site.)Links to an external site.
Statistics question/calculation
StatsI need help with this assignment. I submitted once but my calculations were wrong. Can yhou pleas eshow me in excel h ...
Statistics question/calculation
StatsI need help with this assignment. I submitted once but my calculations were wrong. Can yhou pleas eshow me in excel how to calculate? Thanks. You
may assume that these respondents represent a simple random sample of
all potential respondents within the community and that the population
is large enough that application of the finite population correction
would not make an appreciable difference in the results. Item C in the description of the data collection
instrument lists variables 7, 8, and 9, which represent the respondent’s
general attitude toward each of the three shopping areas. Each of these
variables has numerically equal distances between the possible
responses, and for purposes of analysis they may be considered to be of
the interval scale of measurement.a. Determine the point
estimate, then construct the 95% confidence interval for = the average
attitude toward Springdale Mall. What is the maximum likely error in the
point estimate of the population mean?b. Repeat part (a) for and , the average attitudes toward Downtown and West Mall, respectively.Given
the breakdown of responses for variable 26 (sex of respondent),
determine the point estimate, then construct the 95% confidence
interval for = the population proportion of males. What is the maximum
likely error in the point estimate of the population proportion?Given
the breakdown of responses for variable 28 (marital status of
respondent), determine the point estimate, then construct the 95%
confidence interval for = the population proportion in the “single or
other” category. What is the maximum likely error in the point estimate
of the population proportion?
inverse trigonometric functions, algebra homework help
Find x to the nearest degree if x = sin-1 (2/3)1°42°48°73°------------------------------------------Find x to the near ...
inverse trigonometric functions, algebra homework help
Find x to the nearest degree if x = sin-1 (2/3)1°42°48°73°------------------------------------------Find x to the nearest degree if x = arctan 0.270°90°45°0°=========================Find x in radians if x = arccos (¼). Round to the nearest hundredth.1.3275.520.971.00==================Find x in radians if x = sin-1(5/8). Round to the nearest hundredth.0.0138.70.680.59================Find the value of the expression below. Round to the nearest hundredth.88.30.661.5157.3================Find the value of the expression below. Round to the nearest tenth.0.761.00 0.631.59====================Find the value of the expression below. Round to the nearest hundredth.tan(Arctan 4)75.9640.0089.25===================Simplify [cos(arc cos x)] • [(Arc sin(sin y)]A. x/y B. x2y2C.xyD.x==================The cruise ship Reno sailed due West 24 miles before turning south. When the Reno became disabled and radioed for help, the rescue boat found that the fastest route to her covered a distance of 48 miles. The cosine of the angle at which the rescue boat should sail is 0.5. Find the angle Θ, nearest tenth of a degree, at which the rescue boat should travel to aid the Reno.26.6°30°60°87.3°==================To the nearest degree, what is the angle of depression Θ between the shallow end and the deep end of the swimming pool shown below?25°37°53°73°
Statistics Assignment
Hypothesis testing is the foundation of conducting research in psychology. Researchers must first determine the question t ...
Statistics Assignment
Hypothesis testing is the foundation of conducting research in psychology. Researchers must first determine the question they wish to answer and then state their prediction in a null hypothesis and an alternative hypothesis. Once the hypotheses are stated, researchers move on to data collection. However, once the results come in, the real challenge is to determine if they have meaning; that is, are the results statistically significant or just due to random variation? This application will allow you to practice hypothesis testing by using z-scores to compare a single score to a population mean in order to determine if results are statistically significant. Scenario: Lucy wants to know how her fourth-grade daughter, Monica, scored on a test of reading comprehension compared to the population of other fourth graders in the school district. Luckily, Lucy has taken this course and knows that a z-score will help her understand Monica’s reading score in relation to the population. You can find the data for this Assignment below:Data Set: Monica’s reading comprehension score = 61 Mean fourth grade reading comprehension score = 54 Standard deviation of the fourth grade’s reading comprehension = 2.4 Monica’s z-score in math = 1.10 Mean fourth grade math score = 151 Standard deviation of the fourth grade’s math scores = 12.2 To complete this Assignment, submit responses to the following: State the dependent variable. A dependent variable measures the behavior or attitude of a participant and depends on the participant’s reaction to a condition, or the category of the independent variable that creates the situation under which participants are studied (Heiman, 2015). In this scenario, the dependent variable is Monica’s test scores because they depend on her reaction to the independent variable, which in this case are her reading and math tests. PLEASE CHECK MY ANSWER2. Explain whether Lucy should use a one-tailed or a two-tailed z-test and explain why. A one-tailed test is preformed when you want to predict that the dependent scores, in this case Monica’s test score, will only increase or will only decrease (Heiman, 2015). A two-tailed test is used when you do not predict whether dependent scores will increase or decrease Heiman, 2015). Since it is not indicated in this week’s instructions that Lucy did or want to make any predictions about Monica’s tests score and a , I suggest that she use a two-tailed test z-test. PLEASE CHECK MY ANSWER3. State the null hypothesis in words (not formulas).4. State the alternative hypothesis in words (not formulas).5. Calculate the obtained z-score by hand. Describe your calculations (i.e., show your work).To obtain Monica’s z-score for reading, I had to subtract her raw reading comprehension score of 61 by the mean of all fourth grade reading comprehension scores , which is 54. Then I divided the difference of 7 by the standard deviation of the fourth grade’s reading comprehension, 7 divided by 2.4 is 2.92, which brings me to the conclusion that the z-score for Monica’s reading comprehension is positive 2.92 and it fall above the mean by 2.92 standard deviations (Heiman, 2015).Z= (61-54)/2.4Z= 2.92PLEASE CHECK MY ANSWER6. When alpha is set at .05, the critical value is ± 1.96. Should the null hypothesis be retained or rejected? Explain why. When alpha is set at .05 and the critical value is negative or positive 1.96, the null hypothesis should be rejected because.......THIS IS NOT ANSWER, I TRIED TO UNDERSTAND THIS BUT I AM LOST7. Are the results statistically significant? How do you know?8.What should Lucy conclude about Monica’s reading comprehension score in comparison to the population? PLEASE FULLY EXPLAIN ALL CALCULATIONS AND ANSWERS TO QUESTIONS
Grand Canyon University Statistic Type to Analyze Data Discussion
Respond these two questions 1- To determine whether a new sleeping pill has an effect that varies with dosage, a researche ...
Grand Canyon University Statistic Type to Analyze Data Discussion
Respond these two questions 1- To determine whether a new sleeping pill has an effect that varies with dosage, a researcher randomly assigns adult insomniacs, in equal numbers, to receive either 4 or 8 grams of the sleeping pill. The amount of sleeping time is measured for each subject during an 8-hour period after the administration of the dosage. What type of design is this, and what type of statistic is needed to analyze the data?2 - Dr. Bill Board designs a 2 X 2 between-subjects factorial design, where Factor A is word frequency (low or high) and Factor B is category cues (no cues or cues). Assume that the data are interval. What type of statistic is needed to analyze the data?
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Central Tendency and Variability
Follow these steps:Download the Measures of Central Tendency and Variability document (PDF). (I attached it) Create a new ...
Central Tendency and Variability
Follow these steps:Download the Measures of Central Tendency and Variability document (PDF). (I attached it) Create a new document that contains your solutions to the problems.Save the document with a descriptive file name that includes your last name and first initial (example: SmithJ_measures.doc).Youll need access to my statcruch account you can use the following to complete it...Link: statcrunch.comUser: thakorjPassword: Jayr5214 (Capital J) Supplemental StatCrunch Tutorial VideosThe following videos on Measures of Central Tendency will be useful in finishing this activity:Calculating Summary Statistics in StatCrunch (4:23 YouTube) (Links to an external site.)Links to an external site.3_2_2_standard_deviation_StatCrunch.mov (3:00 YouTube) (Links to an external site.)Links to an external site.
Statistics question/calculation
StatsI need help with this assignment. I submitted once but my calculations were wrong. Can yhou pleas eshow me in excel h ...
Statistics question/calculation
StatsI need help with this assignment. I submitted once but my calculations were wrong. Can yhou pleas eshow me in excel how to calculate? Thanks. You
may assume that these respondents represent a simple random sample of
all potential respondents within the community and that the population
is large enough that application of the finite population correction
would not make an appreciable difference in the results. Item C in the description of the data collection
instrument lists variables 7, 8, and 9, which represent the respondent’s
general attitude toward each of the three shopping areas. Each of these
variables has numerically equal distances between the possible
responses, and for purposes of analysis they may be considered to be of
the interval scale of measurement.a. Determine the point
estimate, then construct the 95% confidence interval for = the average
attitude toward Springdale Mall. What is the maximum likely error in the
point estimate of the population mean?b. Repeat part (a) for and , the average attitudes toward Downtown and West Mall, respectively.Given
the breakdown of responses for variable 26 (sex of respondent),
determine the point estimate, then construct the 95% confidence
interval for = the population proportion of males. What is the maximum
likely error in the point estimate of the population proportion?Given
the breakdown of responses for variable 28 (marital status of
respondent), determine the point estimate, then construct the 95%
confidence interval for = the population proportion in the “single or
other” category. What is the maximum likely error in the point estimate
of the population proportion?
inverse trigonometric functions, algebra homework help
Find x to the nearest degree if x = sin-1 (2/3)1°42°48°73°------------------------------------------Find x to the near ...
inverse trigonometric functions, algebra homework help
Find x to the nearest degree if x = sin-1 (2/3)1°42°48°73°------------------------------------------Find x to the nearest degree if x = arctan 0.270°90°45°0°=========================Find x in radians if x = arccos (¼). Round to the nearest hundredth.1.3275.520.971.00==================Find x in radians if x = sin-1(5/8). Round to the nearest hundredth.0.0138.70.680.59================Find the value of the expression below. Round to the nearest hundredth.88.30.661.5157.3================Find the value of the expression below. Round to the nearest tenth.0.761.00 0.631.59====================Find the value of the expression below. Round to the nearest hundredth.tan(Arctan 4)75.9640.0089.25===================Simplify [cos(arc cos x)] • [(Arc sin(sin y)]A. x/y B. x2y2C.xyD.x==================The cruise ship Reno sailed due West 24 miles before turning south. When the Reno became disabled and radioed for help, the rescue boat found that the fastest route to her covered a distance of 48 miles. The cosine of the angle at which the rescue boat should sail is 0.5. Find the angle Θ, nearest tenth of a degree, at which the rescue boat should travel to aid the Reno.26.6°30°60°87.3°==================To the nearest degree, what is the angle of depression Θ between the shallow end and the deep end of the swimming pool shown below?25°37°53°73°
Statistics Assignment
Hypothesis testing is the foundation of conducting research in psychology. Researchers must first determine the question t ...
Statistics Assignment
Hypothesis testing is the foundation of conducting research in psychology. Researchers must first determine the question they wish to answer and then state their prediction in a null hypothesis and an alternative hypothesis. Once the hypotheses are stated, researchers move on to data collection. However, once the results come in, the real challenge is to determine if they have meaning; that is, are the results statistically significant or just due to random variation? This application will allow you to practice hypothesis testing by using z-scores to compare a single score to a population mean in order to determine if results are statistically significant. Scenario: Lucy wants to know how her fourth-grade daughter, Monica, scored on a test of reading comprehension compared to the population of other fourth graders in the school district. Luckily, Lucy has taken this course and knows that a z-score will help her understand Monica’s reading score in relation to the population. You can find the data for this Assignment below:Data Set: Monica’s reading comprehension score = 61 Mean fourth grade reading comprehension score = 54 Standard deviation of the fourth grade’s reading comprehension = 2.4 Monica’s z-score in math = 1.10 Mean fourth grade math score = 151 Standard deviation of the fourth grade’s math scores = 12.2 To complete this Assignment, submit responses to the following: State the dependent variable. A dependent variable measures the behavior or attitude of a participant and depends on the participant’s reaction to a condition, or the category of the independent variable that creates the situation under which participants are studied (Heiman, 2015). In this scenario, the dependent variable is Monica’s test scores because they depend on her reaction to the independent variable, which in this case are her reading and math tests. PLEASE CHECK MY ANSWER2. Explain whether Lucy should use a one-tailed or a two-tailed z-test and explain why. A one-tailed test is preformed when you want to predict that the dependent scores, in this case Monica’s test score, will only increase or will only decrease (Heiman, 2015). A two-tailed test is used when you do not predict whether dependent scores will increase or decrease Heiman, 2015). Since it is not indicated in this week’s instructions that Lucy did or want to make any predictions about Monica’s tests score and a , I suggest that she use a two-tailed test z-test. PLEASE CHECK MY ANSWER3. State the null hypothesis in words (not formulas).4. State the alternative hypothesis in words (not formulas).5. Calculate the obtained z-score by hand. Describe your calculations (i.e., show your work).To obtain Monica’s z-score for reading, I had to subtract her raw reading comprehension score of 61 by the mean of all fourth grade reading comprehension scores , which is 54. Then I divided the difference of 7 by the standard deviation of the fourth grade’s reading comprehension, 7 divided by 2.4 is 2.92, which brings me to the conclusion that the z-score for Monica’s reading comprehension is positive 2.92 and it fall above the mean by 2.92 standard deviations (Heiman, 2015).Z= (61-54)/2.4Z= 2.92PLEASE CHECK MY ANSWER6. When alpha is set at .05, the critical value is ± 1.96. Should the null hypothesis be retained or rejected? Explain why. When alpha is set at .05 and the critical value is negative or positive 1.96, the null hypothesis should be rejected because.......THIS IS NOT ANSWER, I TRIED TO UNDERSTAND THIS BUT I AM LOST7. Are the results statistically significant? How do you know?8.What should Lucy conclude about Monica’s reading comprehension score in comparison to the population? PLEASE FULLY EXPLAIN ALL CALCULATIONS AND ANSWERS TO QUESTIONS
Grand Canyon University Statistic Type to Analyze Data Discussion
Respond these two questions 1- To determine whether a new sleeping pill has an effect that varies with dosage, a researche ...
Grand Canyon University Statistic Type to Analyze Data Discussion
Respond these two questions 1- To determine whether a new sleeping pill has an effect that varies with dosage, a researcher randomly assigns adult insomniacs, in equal numbers, to receive either 4 or 8 grams of the sleeping pill. The amount of sleeping time is measured for each subject during an 8-hour period after the administration of the dosage. What type of design is this, and what type of statistic is needed to analyze the data?2 - Dr. Bill Board designs a 2 X 2 between-subjects factorial design, where Factor A is word frequency (low or high) and Factor B is category cues (no cues or cues). Assume that the data are interval. What type of statistic is needed to analyze the data?
8 pages
Practice Problems 3f
Write out the traditional assumptions for a one-population proportion Z-test. Random. The data collected should be random ...
Practice Problems 3f
Write out the traditional assumptions for a one-population proportion Z-test. Random. The data collected should be random or represent the entire ...
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