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 2.6 inches. A baseball analyst wonders whether the standard deviation of heights of major-league basebal players is less than 2.6 inches. The heights (in inches) of 20 randomly selected players are shown in the table. E Click the icon to view the data table. Test the notion at the a= 0.01 level of significance. What are the correct hypotheses for this test? The null hypothesis is Ho 2.6. The alternative hypothesis is H 2.6.

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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Chapter1: Starting With Matlab
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B. Calculate the value of the test statistic.

χ2=____
 
C. Use technology to determine the​ P-value for the test statistic.
The​ P-value is___
 
D. What is the correct conclusion at the α=0.01 level of​ significance?
Since the​ P-value is (greater/less) than the level of​ significance, (reject/ do not reject) the null hypothesis. There (is/ is not)  sufficient evidence to conclude that the standard deviation of heights of​ major-league baseball players is less than 2.6 inches at the inches at the 0.01 level of significance.
 
 
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 2.6 inches. A baseball analyst wonders whether the standard deviation of heights of major-league basebal
players is less than 2.6 inches. The heights (in inches) of 20 randomly selected players are shown in the table.
E Click the icon to view the data table.
Test the notion at the a= 0.01 level of significance.
What are the correct hypotheses for this test?
The null hypothesis is Ho
2.6.
The alternative hypothesis is H
2.6.
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 2.6 inches. A baseball analyst wonders whether the standard deviation of heights of major-league basebal players is less than 2.6 inches. The heights (in inches) of 20 randomly selected players are shown in the table. E Click the icon to view the data table. Test the notion at the a= 0.01 level of significance. What are the correct hypotheses for this test? The null hypothesis is Ho 2.6. The alternative hypothesis is H 2.6.
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