QUESTION 5 Suppose that the mean weight of King Penguins found in an Anarctic colony last year was 15.4 kilograms and the standard deviation was 2 kilograms. You want to test the null hypothesis that the mean penguin weight this year does not differ from last year. Assume that the standard deviation has not changed. You are planning to measure a random sample of 100 penguins. At 1% significance level, find the critical values for the test. O a. 15.008 and 15.792 O b. 14.990 and 15.810 O c. 14.755 and 16.045 O d. 14.884 and 15.916 O e. 14.910 and 15.890 QUESTION 6