Ch$.10$: Quality Control$\_$P Charts$\_$All Appliance Repair $(5$ pts$)$

Al Appliance Repair $($AAR$)$ si evaluating the frequency ni which customers report appliance repair has not solved the problem$($s$).$ AR examined samples of calls ot determine the frequency of customers' reports of problem$($s$)$ not solved. Each sample consisted of $100$ calls. Determine $95$ percent limits$.$

Number of Reported Problems$)$ Not Solved ni Each Sample

Sample

Number of Reported Problems$)$ Not Solved $17$

$26364554$

$37985$

$910$

$111213$

$1516$

$4$

$7$

a$).$ Calculate control limits for a P$-$Chart

b$).$ Is the process ni control? Why or why not. Be specific.

Ch $10\_$Quality Control$\_$P Charts