What assumption is necessary to perform this test

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Reference no: EM131271107

A major department store chain is having an end-of-season sale on refrigerators. The number of refrigerators sold during this sale at a sample of 10 stores was:

80 110 0 40 70 80 100 50 80 30

A. Is there evidence that an average of more than 50 refrigerators per store were sold during this sale? Use a = 0.05.

B. What assumption is necessary to perform this test?

Reference no: EM131271107

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