QUESTION 14 A general manager of the Mega Mart supermarket chain is studying the method of payment used by the customers at two of its city stores. At the chain’s downtown store last week, a sample of...

            A general manager of the Mega Mart supermarket chain is studying the method of payment used by the customers at two of its city stores.  At the chain’s downtown store last week, a sample of 400 patrons was randomly selected, and each patron’s method of payment was identified.  Is there sufficient evidence to dispute the claim, using a 0.001 level of significance, that all methods of payment had an equal likelihood of occurrence?  The multinomial sample results were as follows:

Given that all five methods of payment are claimed to have the same likelihood of occurrence, their respective hypothesized proportions are 20%or 0.20.