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 baseball players is less than 2.6

inches. The heights (in inches) of 20 randomly selected players are shown in the table.

A.Calculate the value of the test statistic.

Assume =2.2. Use technology to calculate the value of s, the sample standard deviation, rounding to four decimal places. s=1.9541

Identify the value of n

B. Next find the P-value for the test statistic. Since this is a left-tailed test, the P-value is the probability of getting a value of 2

less than the test statistic

14.990.