A Clothing Manufacturer Is Curious If Celebrity Endorsements Will Influence

A clothing manufacturer is curious if celebrity endorsements will influence a customer's decision in buying its products.This clothing manufacturer premieres its latest series of commercials privately to two separate groups of potential shoppers.One group will see a series of commercials without celebrities,and one group will see a series of commercials with celebrities.Furthermore,the manufacturer decides to split up the male shoppers from the female shoppers. Grouping the shoppers together by gender is an example of what?

A) Stratifying
B) Matching
C) Reduction of confounding factors
D) Factoring
E) Blocking

Correct Answer:

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