The makers of an energy drink want to identify the average age of its consumers. A sample of 20 consumers is selected. The average age in the sample was 22.5 years with a standard deviation of 5...

The makers of an energy drink want to identify the average age of its consumers. A sample of 20 consumers is selected. The average age in the sample was 22.5 years with a standard deviation of 5 years. Assume the population of consumer ages is normally distributed.

A. Contruct a 92% confidence interval for the average age of all consumers

B. Construct an 80% confidence interval for the average age of all consumers

C. Discuss why the 92% and the 80% confidence intervals are different?