Jerry is concerned that the individuals who did not return his survey might somehow be different from those who did return the survey. Jerry is concerned about the possibility of a(n)
a. sample stability problem.
b. nonresponse bias.
c. volunteer bias.
d. inadequate sample.
Question 2
Bill concludes that he is 95 confident in his conclusion that the typical university student studies between 2 and 4 hours a day. This is an example of a(n)
a. point estimate.
b. sample estimate.
c. inaccurate estimate.
d. interval estimate.
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