Chapter 13 - Which type of test should I run.docx - Which...

This preview shows page 1 - 2 out of 3 pages.

Which type of test should I run? Instructions: A. Identify the type of problem a. 2 Sample t-test b. Paired t-test B. Write out the Research Hypothesis
1. The management of Discount Furniture designed an incentive plan for salespeople. To evaluate this innovative plan, 12 sales people were selected at random, and their weekly incomes before and after the plan were recorded. Has the incentive program made a difference in incomes?
2. The federal government recently granted funds for a special program designed to reduce crime in high- crime areas. Numbers of crimes by area were recorded for a one-month period before and after the program was implemented for twenty different zip-codes. Has there been a decrease in the number of crimes?
3. A coffee manufacturer is interested in whether the mean daily consumption of regular-coffee drinkers is less than that of decaffeinated-coffee drinkers. A random sample of 50 regular-coffee drinkers showed a

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture