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a study on using a chief executive officer's facial structure to predict a firm's financial erformance. The facial width-to-height ratio (WHR) for each in a sample of 53 CEOs at publicly traded firms wa etermined. The sample resulted in x = 1.94 and s= 0.15. An analyst wants to predict the financial performance ased on the value of the true mean facial WHR of CEOs. The analyst wants to use the value of μ = 2.2. Do you ecommend he use this value? Conduct a test of hypothesis for u to help you answer the question. Specify all th lements of the test including H H tost otatistic

a study on using a chief executive officer's facial structure to predict a firm's financial erformance. The facial width-to-height ratio (WHR) for each in a sample of 53 CEOs at publicly traded firms wa etermined. The sample resulted in x = 1.94 and s= 0.15. An analyst wants to predict the financial performance ased on the value of the true mean facial WHR of CEOs. The analyst wants to use the value of μ = 2.2. Do you ecommend he use this value? Conduct a test of hypothesis for u to help you answer the question. Specify all th lements of the test including H H tost otatistic

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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Researchers conducted a study on using a chief executive officer's facial structure to predict a firm's financial performance. The facial width-to-height ratio (WHR) for each in a sample of 53 CEOs at publicly traded firms was determined. The sample resulted in x= 1.94 and s = 0.15. An analyst wants to predict the financial performance of a firm based on the value of the true mean facial WHR of CEOs. The analyst wants to use the value of u = 2.2. Do you recommend he use this value? Conduct a test of hypothesis for u to help you answer the question. Specify all the elements of the test, including Ho, Ha, test statistic, p-value, and your conclusion. Test at a = 0.05.
Researchers conducted a study on using a chief executive officer's facial structure to predict a firm's financial performance. The facial width-to-height ratio (WHR) for each in a sample of 53 CEOs at publicly traded firms was determined. The sample resulted in x = 1.94 and s= 0.15. An analyst wants to predict the financial performance of a firm based on the value of the true mean facial WHR of CEOs. The analyst wants to use the value of μ = 2.2. Do you recommend he use this value? Conduct a test of hypothesis for u to help you answer the question. Specify all the elements of the test, including Ho, Ha, test statistic, p-value, and your conclusion. Test at x = 0.05. Specify the null and alternative hypotheses. Ho: Ha: (Type integers or decimals. Do not round.) What is the value of the test statistic? Z= (Round to two decimal places as needed.) Find the p-value. p-value = (Round to three decimal places as needed.) What is the appropriate conclusion at x = 0.05? Ho. There is evidence at the x = 0.05 level of significance to conclude that the true mean facial WHR is (Type an integer or a decimal. Do not round.)
Transcribed Image Text:Researchers conducted a study on using a chief executive officer's facial structure to predict a firm's financial performance. The facial width-to-height ratio (WHR) for each in a sample of 53 CEOs at publicly traded firms was determined. The sample resulted in x = 1.94 and s= 0.15. An analyst wants to predict the financial performance of a firm based on the value of the true mean facial WHR of CEOs. The analyst wants to use the value of μ = 2.2. Do you recommend he use this value? Conduct a test of hypothesis for u to help you answer the question. Specify all the elements of the test, including Ho, Ha, test statistic, p-value, and your conclusion. Test at x = 0.05. Specify the null and alternative hypotheses. Ho: Ha: (Type integers or decimals. Do not round.) What is the value of the test statistic? Z= (Round to two decimal places as needed.) Find the p-value. p-value = (Round to three decimal places as needed.) What is the appropriate conclusion at x = 0.05? Ho. There is evidence at the x = 0.05 level of significance to conclude that the true mean facial WHR is (Type an integer or a decimal. Do not round.)
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