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QUESTION 8 The trend of thinner Miss America winners has generated charges that the contest encourages unhealthy diet habits among young women. Listed below are the body mass indexes (BMI) for Miss America winners from two different time periods. Use a 0.05 significance level to test the claim that recent winners have a lower mean BMI than the population 1 consist of the BMI of recent winners winners from the 1920s and 1930s. Let and population 2 consist of the BMI of winners from the 20s and 30s. 19.5 20.3 19.6 20.2 17.8 17.9 19.118.8 17.6 16.8 BMI (from recent winners) BMI (winners from 1920s land 1930s) 20.421.922.122.320.3 18.8 18.9 19.4 18.4 19.1 (a) Identify the null and alternative hypothesis in symbolic form. Choose from the following symbols to fill in the blanks: =, #,<,S,>,or 2' Ho: H1- H2 H: H1. H2 (b) The value of the test statistic is Round decimal to two places. (c) The is P-Value Round decimal to three places. (d) State and interpret the final conclusion in the context of this problem. (e) Construct an appropriate confidence interval for the difference between the mean BMI of recent winners and the mean of BMI winners from the 1920s and 1930s. Round decimal to four places. i. What level of confidence is appropriate for constructing this confidence interval? C.L. = ii. The confidence interval is from

QUESTION 8 The trend of thinner Miss America winners has generated charges that the contest encourages unhealthy diet habits among young women. Listed below are the body mass indexes (BMI) for Miss America winners from two different time periods. Use a 0.05 significance level to test the claim that recent winners have a lower mean BMI than the population 1 consist of the BMI of recent winners winners from the 1920s and 1930s. Let and population 2 consist of the BMI of winners from the 20s and 30s. 19.5 20.3 19.6 20.2 17.8 17.9 19.118.8 17.6 16.8 BMI (from recent winners) BMI (winners from 1920s land 1930s) 20.421.922.122.320.3 18.8 18.9 19.4 18.4 19.1 (a) Identify the null and alternative hypothesis in symbolic form. Choose from the following symbols to fill in the blanks: =, #,<,S,>,or 2' Ho: H1- H2 H: H1. H2 (b) The value of the test statistic is Round decimal to two places. (c) The is P-Value Round decimal to three places. (d) State and interpret the final conclusion in the context of this problem. (e) Construct an appropriate confidence interval for the difference between the mean BMI of recent winners and the mean of BMI winners from the 1920s and 1930s. Round decimal to four places. i. What level of confidence is appropriate for constructing this confidence interval? C.L. = ii. The confidence interval is from

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
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QUESTION 8 The trend of thinner Miss America winners has generated charges that the contest encourages unhealthy diet habits among young women. Listed below are the body mass indexes (BMI) for Miss America winners from two different time periods. Use a 0.05 significance level to test the claim that recent winners have a lower mean BMI than the population 1 consist of the BMI of recent winners winners from the 1920s and 1930s. Let and population 2 consist of the BMI of winners from the 20s and 30s. 19.5 20.3 19.6 20.2 17.8 17.9 19.1 18.8 17.6 16.8 BMI (from recent winners) BMI (winners from 1920s and 1930s) 20.4 21.9 22.122.320.3 18.8 18.9 19.4 18.4 19.1 (a) Identify the null and alternative hypothesis in symbolic form. Choose from the following symbols to fill in the blanks: =,#,<,S,>, or 2 Ho: H1 H2 H1: 4- H2 (b) The value of the test statistic is Round decimal to two places. (c) The is P-Value Round decimal to three places. (d) State and interpret the final conclusion in the context of this problem. (e) Construct an appropriate confidence interval for the difference between the mean BMI of recent winners and the mean of BMI winners from the 1920s and 1930s. Round decimal to four places. i. What level of confidence is appropriate for constructing this confidence interval? C.L. = %3D ii. The confidence interval is from to Round decimal to thr
Transcribed Image Text:QUESTION 8 The trend of thinner Miss America winners has generated charges that the contest encourages unhealthy diet habits among young women. Listed below are the body mass indexes (BMI) for Miss America winners from two different time periods. Use a 0.05 significance level to test the claim that recent winners have a lower mean BMI than the population 1 consist of the BMI of recent winners winners from the 1920s and 1930s. Let and population 2 consist of the BMI of winners from the 20s and 30s. 19.5 20.3 19.6 20.2 17.8 17.9 19.1 18.8 17.6 16.8 BMI (from recent winners) BMI (winners from 1920s and 1930s) 20.4 21.9 22.122.320.3 18.8 18.9 19.4 18.4 19.1 (a) Identify the null and alternative hypothesis in symbolic form. Choose from the following symbols to fill in the blanks: =,#,<,S,>, or 2 Ho: H1 H2 H1: 4- H2 (b) The value of the test statistic is Round decimal to two places. (c) The is P-Value Round decimal to three places. (d) State and interpret the final conclusion in the context of this problem. (e) Construct an appropriate confidence interval for the difference between the mean BMI of recent winners and the mean of BMI winners from the 1920s and 1930s. Round decimal to four places. i. What level of confidence is appropriate for constructing this confidence interval? C.L. = %3D ii. The confidence interval is from to Round decimal to thr
(a) Identify the null and alternative hypothesis in symbolic form. Choose from the following symbols to fill in the blanks: =, #,<,S,>, or >' Ho: H1– (b) The value of the test statistic is Round decimal to two places. (c) The P - Value is Round decimal to three places. (d) State and interpret the final conclusion in the context of this problem. (e) Construct an appropriate confidence interval for the difference between the mean BMI of recent winners and the mean of BMI winners from the 1920s and 1930s. Round decimal to four places. i. What level of confidence is appropriate for constructing this confidence interval? C.L. = %3D ii. The confidence interval is from to Round decimal to three places. (f) Does the confidence interval support the claim that recent winners have a lower mean BMI than winners from the 1920s End 1930s? Explain why or why not. For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac). BIUS Paragraph Arial 14px A ... <> II
Transcribed Image Text:(a) Identify the null and alternative hypothesis in symbolic form. Choose from the following symbols to fill in the blanks: =, #,<,S,>, or >' Ho: H1– (b) The value of the test statistic is Round decimal to two places. (c) The P - Value is Round decimal to three places. (d) State and interpret the final conclusion in the context of this problem. (e) Construct an appropriate confidence interval for the difference between the mean BMI of recent winners and the mean of BMI winners from the 1920s and 1930s. Round decimal to four places. i. What level of confidence is appropriate for constructing this confidence interval? C.L. = %3D ii. The confidence interval is from to Round decimal to three places. (f) Does the confidence interval support the claim that recent winners have a lower mean BMI than winners from the 1920s End 1930s? Explain why or why not. For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac). BIUS Paragraph Arial 14px A ... <> II
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