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2. (CLO 1) Construct a confidence interval to estimate the mean height and the mean shoe size: you must complete the following questions by first choosing a Confidence Level. You may choose from the familiar 90%, 95%, or 99% level of confidence. Denote this by choosing a = 9. 05 a. Find the sample mean and sample standard deviation of the height. Denote them as and 8z respectively. 95% omple Size =9 Sum : 617 Mean = 68. 556 Stondard - 4.03 Deviation b. Find the sample mean and sample standard deviation of the shoe sizes. Denote them as y and sy respectively. Somple Gize :9 Sum= 110 Stondord Deviation = Mea n= 12.222 0.971

2. (CLO 1) Construct a confidence interval to estimate the mean height and the mean shoe size: you must complete the following questions by first choosing a Confidence Level. You may choose from the familiar 90%, 95%, or 99% level of confidence. Denote this by choosing a = 9. 05 a. Find the sample mean and sample standard deviation of the height. Denote them as and 8z respectively. 95% omple Size =9 Sum : 617 Mean = 68. 556 Stondard - 4.03 Deviation b. Find the sample mean and sample standard deviation of the shoe sizes. Denote them as y and sy respectively. Somple Gize :9 Sum= 110 Stondord Deviation = Mea n= 12.222 0.971

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Hi, I need help with the rest of the parts for this exercise. Please complete as much as possible. ( It is completed all the way to 2C) Thanks in advance .
3. (CLO 2) Test a claim that the mean height of your population is different from 64 inches. Use the appropriate significance level a you fixed earlier. a. State the initial and alternative hypothesis. b. Find the test statistic and the P-value. You must first write the formula for the test statistic and then substitute your appropriate numbers. c. Draw a conclusion in context of the situation. Your conclusion should include both the formal language as well as an informal explanation. 4. (CLO 3) Find a correlation between height and shoe size. a. Create a scatterplot of the data. Height is x-axis and Shoe size is y-axis. Attach your scatterplot to the end of this document. b. Find the linear correlation coefficient. What does this tell you about your data? c. Write the equation of the regression line and use it to predict the shoe size of a person that is 68 inches tall. 5. Write a paragraph or two about what you have learned from this process. When you read, see, or hear a statistic in the future, what skills will you apply to know whether you can trust the result?
Transcribed Image Text:3. (CLO 2) Test a claim that the mean height of your population is different from 64 inches. Use the appropriate significance level a you fixed earlier. a. State the initial and alternative hypothesis. b. Find the test statistic and the P-value. You must first write the formula for the test statistic and then substitute your appropriate numbers. c. Draw a conclusion in context of the situation. Your conclusion should include both the formal language as well as an informal explanation. 4. (CLO 3) Find a correlation between height and shoe size. a. Create a scatterplot of the data. Height is x-axis and Shoe size is y-axis. Attach your scatterplot to the end of this document. b. Find the linear correlation coefficient. What does this tell you about your data? c. Write the equation of the regression line and use it to predict the shoe size of a person that is 68 inches tall. 5. Write a paragraph or two about what you have learned from this process. When you read, see, or hear a statistic in the future, what skills will you apply to know whether you can trust the result?
b. Collect the sample and record the data. Use a single unit for height. Do not use a mixed unit like feet and inches. Person 1 Person 2 Person 3 Person 4 Person 5 Person 6 Person 7 Person 8 72 69 13 E. Height Person 9 64 69 1212 747067 61 14 Shoe Size 12 2. (CLO 1) Construct a confidence interval to estimate the mean height and the mean shoe size: you must complete 12 // the following questions by first choosing a Confidence Level. You may choose from the familiar 90%, 95%, or 99% level of confidence. Denote this by choosing o = . 05 95% a. Find the sample mean and sample standard deviation of the height. Denote them as ī and s, respectively. Sample Size = Mean = 68. 556 Sum = 617 Stondard Deviation - 4.03 b. Find the sample mean and sample standard deviation of the shoe sizes. Denote them as j and s, respectively. Somple Size =9 Sum= 110 Stonlord Desiation = Mea n= 12.222 0.971 ニ c. Construct and interpret a confidence interval to estimate the mean height of the population. You must first write the formula for the confidence interval and then substitute your appropriate numbers. 95% level of a= 0.05 Significance Degres 2.306 Critical Value (65458,71.654) 65.458<pく7,6S4 Level freedom Con fidence d. Construct and interpret a confidence interval to estimate the mean shoe size of the population. You must first write the formula for the confidence interval and then substitute your appropriate numbers.
Transcribed Image Text:b. Collect the sample and record the data. Use a single unit for height. Do not use a mixed unit like feet and inches. Person 1 Person 2 Person 3 Person 4 Person 5 Person 6 Person 7 Person 8 72 69 13 E. Height Person 9 64 69 1212 747067 61 14 Shoe Size 12 2. (CLO 1) Construct a confidence interval to estimate the mean height and the mean shoe size: you must complete 12 // the following questions by first choosing a Confidence Level. You may choose from the familiar 90%, 95%, or 99% level of confidence. Denote this by choosing o = . 05 95% a. Find the sample mean and sample standard deviation of the height. Denote them as ī and s, respectively. Sample Size = Mean = 68. 556 Sum = 617 Stondard Deviation - 4.03 b. Find the sample mean and sample standard deviation of the shoe sizes. Denote them as j and s, respectively. Somple Size =9 Sum= 110 Stonlord Desiation = Mea n= 12.222 0.971 ニ c. Construct and interpret a confidence interval to estimate the mean height of the population. You must first write the formula for the confidence interval and then substitute your appropriate numbers. 95% level of a= 0.05 Significance Degres 2.306 Critical Value (65458,71.654) 65.458<pく7,6S4 Level freedom Con fidence d. Construct and interpret a confidence interval to estimate the mean shoe size of the population. You must first write the formula for the confidence interval and then substitute your appropriate numbers.
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