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Chi square test

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15.7 One-year sales volume of four similar 20-oz. beverages on a college campus is shown.
(a) Make a bar chart and describe it.
(b) Calculate expected frequencies for each class.
(c) Perform the chi square
test for a uniform distribution. At α = .05, does this sample contradict the assumption that
sales are the same for each beverage? Frapp
Beverage Sales (Cases)
Frappuccino Coffee 18
Frappuccino Mocha 23
Frappuccino Vanilla 23
Frappuccino Caramel 20
Total 84

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Solution Summary

The solution provides step by step method for the calculation of chi square test. Formula for the calculation and Interpretations of the results are also included. Interactive excel sheet is included. The user can edit the inputs and obtain the complete results for a new set of data.

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