Question

AMTRAN is a package delivery company with hubs in Memphis and San Antonio. In a study of its delivery performance, the company tracked a sample of 150 customer complaints, determining the nature of the complaint and the hub that handled the package. Results of the study are given in the table.
Use a chi square test of independence to test a null hypothesis that the nature of the complaint is independent of hub source for the populations represented. Use a significance level of 5%.


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  • CreatedJuly 16, 2015
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