A marketing firm is studying consumer preferences for winter fashions in four different months. From a population of women, 18-21 years of age, a random sample of 100 women was selected in January. Another random sample of 100 women was selected in March. Another random sample of 100 women was selected in June. Another random sample of 100 women was selected in September.
A) The sample size was 4.
B) The sample size was 100.
C) The sample size was 400.
D) The sample size was 1.

Question

Quizplus · Accepted Answer

The sample size for each month was 100, making the total sample size 400. Therefore, option C is correct. Option A is incorrect because four is not the sample size, but rather the number of months studied. Option D is incorrect because a sample size of one is not representative of a population, and it would not yield reliable data.

A Marketing Firm Is Studying Consumer Preferences for Winter Fashions