The proportion of supermarket customers who do not buy store-brand products is to be estimated.Suppose 500 customers are selected from the roughly 20,000 customers who shop at the stores citywide.The sample proportion of supermarket customers who do not buy store-brand products equals 33.5%.Which value(s)can be labeled as statistic(s)?
A)20,000
B)500 and 20,000
C)33.5%
D)20,000 and 33.5%

Question

Quizplus · Accepted Answer

The sample proportion of 33.5% is a statistic because it is a numerical summary of the sample data. The population size of 20,000 and the sample size of 500 are population parameters, not statistics.

The Proportion of Supermarket Customers Who Do Not Buy Store-Brand