Is there evidence that mean shopping time is different

Assignment Help Basic Statistics

Reference no: EM13122766

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?

Reference no: EM13122766

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