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An article claimed that the typical supermarket trip takes a mean of 22 minutes.To test this claim,you select a sample of 50 shoppers at the supermarket.The man shopping time for the sample of 50 shoppers is 23.99 minutes,with a standard deviation of 7.88 minutes.Using the 0.01 level of significance,is there evidence that the mean shopping time at the supermarket is different from the claimed value of 22 minutes?

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