Question: Regular consumption of presweetened cereals contributes to tooth decay, heart disease, and other degenerative diseases according to studies conducted by Dr. W H. Bowen of the National Institutes of Health and Dr. J. Yudben, Professor of Nutrition and Dietetics at the University of London. In a random sample of 20 similar single servings of Alpha-Bits, the average sugar content was 11.3 grams with a standard deviation of 2.45 grams.

a) Assuming that sugar contents are normally distribution, construct a 95% confidence interval for the mean sugar content for single servings of Alpha-Bits. (0.80 point)

b) Interpret the confidence interval, you find in part (b) above (0.25 point)