Question

Question #2: A local company is concerned about the number of days missed by its employees due to illness. A random sample of 10 employees is selected. The number of days absent in one year is listed below. An incentive program is offered in an attempt to decrease the number of days absent. The number of days absent in one year after the incentive program is listed below. Test the claim that the incentive program cuts down on the number of days missed by employees. Use a 0.025. (Assume that the distribution is normally distributed but be sure to verify the remaining requirements for the test.) ABİC D E F GHIJ Days absent before 3 8 7 2 9 4 2 0 7 5 incentive Days absent after incentive 7 7 08 2 [01 5 5

Answer 1

$\mu_x$ = mean no. of days absent before incentive.
$\mu_y$ = mean no. of days absent after incentive.
Now, $\mu_d$ = $\mu_x$ - $\mu_y$.



We conclude that there is enough evidence to suggest that the incentive program cuts down on the number of days missed by employees.