5 Breyers is a major producer of ice cream and would like to

5. Breyers is a major producer of ice cream and would like to test the hypothesis that the average American consumes more than 17 ounces of ice cream per month. A random sample of 15 Americans was found to consume an average of 18.2 ounces of ice cream last month. The standard deviation for this sample was 3.9 ounces. Breyers would like to set = 0.10. The correct hypothesis statement for this hypothesis test would be ?

Solution

H0: mu = average ounces of ice cream consumed per month = 17

Ha: mu >17

Right tailed hypothesis test

n = sample size = 15

Sample mean = 18.2

As sample size is small t test can be done.

Average diff = xbar-mu = 1.2

Std error = 3.9/rt 15 = 1.01

The answer is

H0: mu = average ounces of ice cream consumed per month = 17

Ha: mu >17

Right tailed hypothesis test