The manufacturer of an MP3 player wanted to know whether a 10% reduction in price is enough to increase the sales of its product. To investigate, the owner randomly selected eight outlets and sold the MP3 player at the reduced price. At seven randomly selected outlets, the MP3 player was sold at the regular price. Reported in the table is the number of units sold last month at the regular and reduced prices at the randomly selected outlets. At the .01 significance level, can the manufacturer conclude that the price reduction resulted in an increase in sales?

a. What are the null and alternate hypotheses?

b. Compute the test statistic.

c. Compute the p-value.

d. What is your decision regarding the null hypothesis?

e. Interpret the result.

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Regular price 138 121 88 115 141 125 96 Reduced price 128 134 152 135 114 106 112 120