The marketing department of a sports supply store wants to estimate the percentage of adults in the town who belong to a gym. Which statement describes a method that will help the marketing department accurately estimate this percentage?
A: Select the store’s first 20 customers every day for one week, and ask each person whether he or she belongs to a gym. Calculate the percentage of the total who say “yes.”
B:Take a random sample of adults in the town, and ask each person whether he or she belongs to a gym. Calculate the percentage of the total who say “yes.”
C:Take a random sample of the store’s adult customers, and ask what percentage of their friends belong to a gym. Calculate the mean of the responses.
D:Take a random sample of adults at the local park, and ask each person whether he or she belongs to a gym. Calculate the percentage of the total who say “yes.”
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ummm to me B is more effrctive in place of other options
hope it helps u
hope it helps u
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