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3. A cold drink distributor claims that a new display featuring a life-size procture of a well-known actor will increase
Posted: Wed Nov 24, 2021 9:20 am
by answerhappygod
- 3 A Cold Drink Distributor Claims That A New Display Featuring A Life Size Procture Of A Well Known Actor Will Increase 1 (15.65 KiB) Viewed 80 times
3. A cold drink distributor claims that a new display featuring a life-size procture of a well-known actor will increase product sales in supermarkets by an average of 50 cases per week. For a random sample of 20 high volume outlets, the average sales increase was 41.3 cases, and he sample standard deviation was 12.2 cases. a. Test at the 5% level of significance that the population mean sales increase is at least 50 cases. b. What assumption are you making to conduct the test?