[Solved] President of supermarket wished to determine if customers made a list before going shopping. She surveyed 288 customers in 3 stores. Results are
Question: President of supermarket wished to determine if customers made a list before going shopping. She surveyed 288 customers in 3 stores. Results are shown here. At a=0.10, test the claim that the proportions of the customers in the 3 stores who made a list before going shopping are equal.
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