A department chair wants to monitor the percentage

of failing students in classes in her department. Each

class had an enrollment of $25$ students last spring. The

number of failing students in the $10$ classes offered

that term were $1,4,2,0,2,4,2,0,0,$ and $3,$

respectively. Compute the control limits for a $p-$chart

at the $99\%$ confidence level. Is the process in control?

A$.$ Which type of control chart is most appropriate

here?

B$.$ What is the upper control chart limit$?$

C$.$ What is the lower control chart limit$?$

D$.$ Is the process in control?

r$-$chart

p$-$chart

x$-$bar chart

c$-$chart