Question

A company that owns department stores advertised for one month on television and radio and in...

A company that owns department stores advertised for one month on television and radio and in newspapers and spend the same amount of money on each of these three media. A random sample of 900 customers who visited this company s department stores during that month as a result of these promotional advertisements was asked which advertising medium was most effective in getting each of them to visit the stores. The responses of these customers are recorded in the following table.

Television

450

Radio

250

Newspaper

200



Company director would like to test the null hypothesis that these three media sources have the same promotional impact on customers. What is the appropriate test?

Select one:

A. Test of Independence

B. Goodness of fit test - Multinomial Population

C. Goodness of fit test - Poisson distribution with expected value of 3

D. Goodness of fit test - Normal distribution with mean of 3 and standard deviation of 1

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Answer #1

option B is correct

B. Goodness of fit test - Multinomial Population

(since we are checking if all three categories have equal proportion)

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