You may need to use the appropriate appendix table or technology to answer this question.A sample of 196 cans of coffee showed an average weight of 64 ounces. The standard deviation of the population is known to be 1.5 ounces.

(a)Construct a 68.26% confidence interval for the mean of the population (in ounces). (Round your answers to two decimal places.) oz to oz

(b)Construct a 97% confidence interval for the mean of the population (in ounces). (Round your answers to two decimal places.) oz to oz

(c)Discuss why the answers in parts (a) and (b) are different. (Choose an letter below)

A) As the level of confidence increases, the entire confidence interval shifts farther to the right.

B) As the level of confidence increases, the entire confidence interval shifts farther to the left.

C) As the level of confidence increases, the confidence interval becomes narrower.

D) As the level of confidence increases, the confidence interval becomes wider.

E) The answers in parts (a) and (b) are actually the same.