Question

Telemarketers generally read from a prepared script when they make their sales calls. A firm decides to change this prepared script, making it both friendlier and shorter. The numbers of daily sales are recorded for a random sample of telemarketers, before and after the script change. The data are shown in Exhibit 9.38.
Do the data suggest that there is a difference in the numbers of daily sales before and after the script change? Use α = 0.05.


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  • CreatedJuly 12, 2015
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