Consider the fatty acid measurements for the diet margarine described in Exercise 8-25.
(a) For the sample size n = 6, using a two-sided alternative hypothesis and a = 0.01, test H0: σ2 = 1.0.
(b) Suppose instead of n = 6, the sample size was n = 51. Repeat the analysis performed in part (a) using n = 51.
(c) Compare your answers and comment on how sample size affects your conclusions drawn in parts (a) and (b).