Question

In: Statistics and Probability

Data show that men between the ages of 20 and 29 in a general population have...

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.

Calculate the value of the test statistic.

A) x^2=

B) determine the P-value

72

74 71 72 76
70 77 75 72 72
77 71 75 70 73
74 75 73 74 73

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