Multiple choice question

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.

he null hypothesis is formulated as follows:

Select one:

a.H0: Mu is equal to 17.

b.H0: Mu is less than or equal to 17.

c.H0: Mu is greater than or equal to 17.

d.H0: Mu is strictly less than 17.

The value of the test statistic is:

Select one:

a.1.19.

b.-1.19

c.17.

d.15.

The critical value is:

Select one:

a.+1.345.

b.-1.345.

c.+1.645.

d.+1.96.

The null hypothesis should

Select one:

a.Be revised.

b.Be rejected.

c.Not be rejected.

d.Cannot conclude.

The point estimate of the difference between the two population mean ages is:

Select one:

a.Cannot be determined.

b.6.

c.0.01.

d.1.5.