Multiple choice question

The federal government would like to test if there is any difference in the population average ages of men and women filing for Social Security.

Men (Population 1)

Sample mean: 64.5 years

Sample size: 35

Sample standard deviation: 3.0 years

Women (Population 2)

Sample mean: 63.6 years

Sample size: 39

Sample standard deviation: 3.5 years

The null hypothesis is formulated as follows:

Select one:

a.H0: Mu 1 minus mu 2 is strictly greater than 0.

b.H0: Mu 1 minus mu 2 is not equal to 0.

c.H0: Mu 1 minus mu 2 is equal to 0.

d.H0: Mu 1 minus mu 2 is greater than or equal to 0.

The value of the test statistic is:

Select one:

a.1.756.

b.0.9.

c.1.19.

d.4.

The degrees of freedom are:

Select one:

a.34.

b.73.

c.72.

d.72.44.

The p-value is:

Select one:

a.Between 0.1 and 0.25.

b.Between 0.2 and 0.5.

c.Between 0.01 and 0.05.

d.Between 0.025 and 0.05.