Use the following information for questions:
In a past General Social Survey, 22% of n = 1006 respondents answered yes to the question "Are you a member of any sports groups?" A 95% confidence interval for the population proportion of Americans who belonged to a sports group at that time is 19.4% to 24.6%.
-Based on these results, you can reasonably conclude that
A) less than 50% of all Americans belong to sports clubs.
B) more than 50% of all Americans belong to sports clubs.
C) 22% of all Americans belong to sports clubs.
D) None of the above

Question

Use the following information for questions:
 In a past General Social Survey, 22% of n = 1006 respondents answered yes to the question "Are you a member of any sports groups?" A 95% confidence interval for the population proportion of Americans who belonged to a sports group at that time is 19.4% to 24.6%.
-Based on these results, you can reasonably conclude that
A) less than 50% of all Americans belong to sports clubs.
B) more than 50% of all Americans belong to sports clubs.
C) 22% of all Americans belong to sports clubs.
D) None of the above

Quizplus · Accepted Answer

The confidence interval (19.4% to 24.6%) does not include 50%, indicating that less than 50% of all Americans belong to sports clubs.

Use the Following Information for Questions