Question: In a test of three possible new website designs Macys
In a test of three possible new website designs, Macys. com selected a random sample of 300 online customers. Each customer in the sample was asked to find and purchase a specific list of items within a five minute period. One hundred customers used the Design A website, 100 used the Design B website and 100 used the Design C website. Sixty seven percent of the Design A users, 56% of the Design B users, and 57% of the design C users were able to complete the full list of tasks in the allotted time. Use the chi square test of proportion differences to test the hypothesis that the proportion of users who would be able to complete the list of tasks is the same for the three populations represented here. Use a significance level of 1%.
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