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The manufacturer of an MP3 player wanted to know whether a 10 percent reduction in price is enough to increase the sales of their 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 below is the number of units sold last month at the sampled outlets.
Regular price
138
121
88
115
141
125
96
Reduced price
128
134
152
$135
114
106
112
120
At the .01 significance level, can the manufacturer conclude that the price reduction resulted in an increase in sales?
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