Chapter 10 BSD 1e
Questions
Question 1
1 / 1 point
The federal government would like to test the hypothesis that the average age of men filing for Social
Security is higher than the average age of women set using
α
= 0.05 with the following data:
Men
Women
Sample mean
64.5 years
63.6 years
Sample size
35
39
Population standard deviation
3.0 years
3.5 years
Excel file with table data:
10 Q 1_2_Soc_Security_Men-Women.xlsx
If Population 1 is defined as men and Population 2 is defined as women, the test statistic for this
hypothesis test would be ________.
t
x
x
= -1.78
z
x
x
= 1.19
z
x
x
= -2.23
t
x
= 2.07
Reference: PHSTAT2-Z Test for Differences in Two Means
x
Question 2
1 / 1 point
The federal government would like to test the hypothesis that the average age of men filing for Social
Security is higher than the average age of women set using
α
= 0.05 with the following data:
Men
Women
Sample mean
64.5 years
63.6 years
Sample size
35
39
Population standard deviation
3.0 years
3.5 years
Excel file with table data:
10 Q 1_2_Soc_Security_Men-Women.xlsx
If Population 1 is defined as men and Population 2 is defined as women, which one of the following
statements is true?
