Construct a 96% confidence interval estimate for the average amount of time the new soft ware has saved sales reps, based on the data in Exercise 20 above.
In exercise
A company with a large sales force has implemented a pilot project to test new sales management software, hoping it will reduce the amount of time sales representatives spend on the computer. A random sample of sales reps is selected, 30 of them with the old software and 35 with the new software. They are asked to keep track of the total amount of time they spend on the computer (in minutes) over a two-week period.

  • CreatedJuly 12, 2015
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