The Chamber of Commerce wants to assess its membership's opinions of the North American Free Trade Agreement.One-hundred of the 2,000 members are randomly selected and contacted by telephone.Seventy-five reported an overall favourable opinion,and twenty-five reported an overall unfavourable opinion.The proportion,0.75,is a ___.
A)parameter
B)statistic
C)population
D)sample
E)frame

Question

Quizplus · Accepted Answer

The proportion, 0.75, is a statistic because it is based on a sample (100 members) and is used to make an inference about the population (all 2000 members). A parameter would refer to a measure of the entire population (such as the proportion of all 2000 members who have a favourable opinion). The population refers to the entire group of interest (in this case, all 2000 members of the Chamber of Commerce). A sample is a subset of the population that is used to make inferences about the larger group. A frame refers to the list of all members from which the sample was selected.

The Chamber of Commerce Wants to Assess Its Membership's Opinions