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 calculated F-test statistic value for testing whether blocking on store size was effective is approximately 16.3.

Question

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 calculated F-test statistic value for testing whether blocking on store size was effective is approximately 16.3.

Quizplus · Accepted Answer

The calculated F-test statistic value indicates that there is a significant difference in sales based on store size, suggesting that blocking on store size was effective in controlling for this variable.

An Advertising Company Is Interested in Determining If There Is