Shanks Inc., a nationwide advertising firm, wants to know whether the size of an advertisement and the
Question:
Shank’s Inc., a nationwide advertising firm, wants to know whether the size of an advertisement and the color of the advertisement make a difference in the response of magazine readers. A random sample of readers is shown ads of four different colors and three different sizes. Each reader is asked to give the particular combination of size and color a rating between 1 and 10. Assume that the ratings follow the normal distribution. The rating for each combination is shown in the following table (for example, the rating for a small red ad is 2).
Is there a difference in the effectiveness of an advertisement by color and by size?
a. What are the null and alternate hypotheses?
b. What are the test statistics?
c. What are the p-values?
d. Using a .05 significance level, what is your decision regarding the null hypotheses?
e. Interpret the result.
Step by Step Answer:
Statistical Techniques In Business And Economics
ISBN: 9781260239478
18th Edition
Authors: Douglas Lind, William Marchal, Samuel Wathen