An Advertising Company Is Interested in Determining If There Is

question 29

True/False

An advertising company is interested in determining if there is a difference in the mean sales that will be generated for a soft drink company based on which shelf the soft drinks are located.There are four possible shelf levels.The ad company wants to control for store size.The following data reflect the sales for one week at each combination of shelf level and store size.
Based on the experimental design,the managers should conclude that they were justified in blocking on store size if they test using a 0.05 level of significance.

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Definitions:

Little or No Association

A term used in statistics to describe a situation where there is very weak or no relationship between two variables being studied.

Very Strong Association

A term in statistics indicating a high level of correlation between two variables.

Linear Association

A relationship between two variables where the change in one variable is proportionally related to a change in the other variable.

Positive Association

A relationship between two variables where an increase in one variable is associated with an increase in the other.