A company has test-marketed three new types of soup in selected stores over a period of 1 year. The following table records sales achieved (in thousands of dollars) for each of the three soups in each...


A company has test-marketed three new types of soup in selected stores over a period of 1 year. The following table records sales achieved (in thousands of dollars) for each of the three soups in each quarter of the year.














































Soup





Quarter



A



B



C



1



47



57



65



2



63



63



76



3



79



67



54



4



52



50



49



a. Prepare the two-way analysis of variance table.


b. Test the null hypothesis that population mean sales are the same for all three types of soup.




May 26, 2022
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