10) in a past general social survey, a sample proportion p*=.22(or 22%) from a r
ID: 2950323 • Letter: 1
Question
10) in a past general social survey, a sample proportion p*=.22(or 22%) from a random sample of n=1006 respondents answered yes tothe question "are you a member of any sports groups?" a 95%confidence interval for the population proportion of americans whobelonged to a sports group at that time is 19.4% to 24.6%. based onthese 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
11) if the confidence level (1-)is increased, which of thefollowing must also increase?
a. sample estimate
b. multiplier z(/2)
c. standard error @
d. none of the elements would be increased
Explanation / Answer
10) in a past general social survey, a sample proportion p*=.22(or 22%) from a random sample of n=1006 respondents answered yes tothe question "are you a member of any sports groups?" a 95%confidence interval for the population proportion of americans whobelonged to a sports group at that time is 19.4% to 24.6%. based onthese 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 theabove
11) if the confidence level (1-)is increased, which ofthe following must also increase?
a. sample estimate
b. multiplier z(/2)
c. standard error@
d. none of the elements would be increased
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