Question: In the past, the time customers spend browsing in the toy section of a department store follows a distribution that is skewed to the right

In the past, the time customers spend browsing in the toy section of a department store follows a distribution that is skewed to the right with a mean of 9.00 minutes. A new manager decides to re-arrange the items in this section and the following week a random sample of 35 customers spent an average of 10.30 minutes with a standard deviation of 2.80 minutes.

Does the new arrangement appear to have had an effect on the customer browsing time? Write down the hypotheses and the values of the parameters. Use Minitab to answer the question at α = 0.01.

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