Calculate the value of the test statistic.   Find the P-value.   Reject or Fail to Reject?

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
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Chapter1: Starting With Matlab
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Calculate the value of the test statistic.
 
Find the P-value.
 
Reject or Fail to Reject?
Data show that men between the ages of 20 and 29 in a general population have a mean height of 69.3 inches, with a standard deviation of 3.1 inches. A baseball
analyst wonders whether the standard deviation of heights of major-league baseball players is less than 3.1 inches. The heights (in inches) of 20 randomly selected
players are shown in the table.
Test the notion at the a=0.05 level of significance.
The null hypothesis is Ho:
= 3.1.
The alternative hypothesis is H,:
< 3.1
Calculate the value of the test statistic.
x2 = (Round to three decimal places as needed.)
Transcribed Image Text:Data show that men between the ages of 20 and 29 in a general population have a mean height of 69.3 inches, with a standard deviation of 3.1 inches. A baseball analyst wonders whether the standard deviation of heights of major-league baseball players is less than 3.1 inches. The heights (in inches) of 20 randomly selected players are shown in the table. Test the notion at the a=0.05 level of significance. The null hypothesis is Ho: = 3.1. The alternative hypothesis is H,: < 3.1 Calculate the value of the test statistic. x2 = (Round to three decimal places as needed.)
72 74 71 71 76
70 77 76 72 72
77 71 75 70 73
74 75 73 74 73
Transcribed Image Text:72 74 71 71 76 70 77 76 72 72 77 71 75 70 73 74 75 73 74 73
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