The document discusses height data for men aged 20-29 from a general population. It states the mean height is 60.3 inches with a standard deviation of 2.7 inches. A baseball analyst wants to test whether the height of a specific team differs from the population. The null hypothesis is that the standard deviation is equal to 2.7 inches. The alternative hypothesis is that the standard deviation is not equal to 2.7 inches. The document asks to calculate the test statistic and compare it to the critical value to determine whether to reject the null hypothesis.