Quadro Corporation has two supermarket stores in a city

Subject:StatisticsPrice:3.87 Bought7

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Quadro Corporation has two supermarket stores in a city. The company's quality control department wanted to check if the customers are equally satisfied with the service provided at these two stores. A sample of 25 customers selected from Supermarket I produced a mean satisfaction index of 7.6(on a scale of 1 to 10, 1 being the lowest and 10 being the highest) with a standard deviation of 0.75. Another sample of 28 customers selected from Supermarket II produced a mean satisfaction index of 8.1 with a standard deviation of 0.59. Test at the 1% significance level whether the mean satisfaction indexes for all customers for the two supermarkets are different. (Use the test for small sample inferences for the difference between two population means.)