If a researcher wants to study the impact of a price change in each of three regions of the U.S.(Eastern,Midwestern,and Western),the researcher should have a sample size of retailers in each region of at least ____ stores.
A)30
B)40
C)100
D)1000

Question

Quizplus · Accepted Answer

The sample size should be large enough to provide representative data for each region, but also manageable for the researcher. A sample size of 100 in each region would provide a sufficient amount of data for analysis without being too overwhelming for the researcher to handle. A smaller sample size, such as 30 or 40, may not provide enough data to draw accurate conclusions, while a larger sample size of 1000 may be unnecessarily large and expensive. Therefore, the best choice is C, a sample size of 100 in each region.

If a Researcher Wants to Study the Impact of a Price