A random sample of 100 people was taken. Eighty-five of the people in the sample favored Candidate A. We are interested in determining whether or not the proportion of the population in favor of Candidate A is significantly more than 80. At the .05 level of significance, it can be concluded that the proportion of the population in favor of candidate A is
a. significantly greater than 80.
b. not significantly greater than 80.
c. significantly greater than 85.
d. not significantly greater than 85.
Question 2
Stratified random sampling is a method of selecting a sample in which
a. the sample is first divided into strata, and then random samples are taken from each stratum.
b. various strata are selected from the sample.
c. the population is first divided into strata, and then random samples are drawn from each stratum.
d. the population is first divided into various stratums and then random samples are drawn from each strata.
Population genetics sample question
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