Suppose s = 5 based on a sample of 20 subjects. Test the null hypothesis H0 : σ 2 = 16 versus Ha : σ 2 ≠ 16 using the critical-value method based on a significance level of .05. What is the p-value? Compare the mean level of linoleic acid in the vegetarian population with that of the general population under this hypotheses to report a p-value.