# A consumer preference study involving three different bottle designs (A, B, and C) for the jumbo size

## Question:

TABLE 11.10

Results of a Bottle Design Experiment

a. Test the null hypothesis H0 that no differences exist between the effects of the bottle designs on mean daily sales. Set Î± = .05. Can we conclude that the different bottle designs have different effects on mean sales?

b. Test the null hypothesis H0 that no differences exist between the effects of the supermarkets on mean daily sales. Set Î± = .05. Can we conclude that the different supermarkets have different effects on mean sales?

c. Use Tukey simultaneous 95 percent confidence intervals to make pairwise comparisons of the bottle design effects on mean daily sales. Which bottle design(s) maximize mean sales?

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**Related Book For**

## Business Statistics In Practice

**ISBN:** 9780073401836

6th Edition

**Authors:** Bruce Bowerman, Richard O'Connell