To determine if the process is in control, what type of chart $(x-$bar chart, $R-$

chart, p$-$chart, or c$-$chart$)$ should you be using? $(1$pt$)$

Write down the UCL., CL$,$ and LCL for a $3-$sigma chart, use chart type you

chose in part $(1)$ above. $(4$ pts$)$

If $8$ out of $100$ customers returned for warranty repairs in March $($plot this on

the graph$),$ is the process in control $($based on the control chart you just

created in part $2)$ Yes$/$No$?$ Explain why or why not to receive credit. $(2$pts$)$

Problem $2.(7$pts$).$ Refer to textbook Chapter $3.$ Problem $20.$ Page $130$ for

information. But instead of the textbook questions answer the following $3$

guestions, show your work to receive credit:

To degermine if the process is in control, what type of chart $(x-$bar chart, R$-$

chart, p$-$chart, or c$-$chart$)$ should you be using? $(1$pt$)$

Write down the UCL, CL$,$ and LCL for a $3-$sigma chart, use chart type you

chose in part $(1)$ above. $(4$ pts $)$

Plot the $8$ values given below on the control chart you just created in part $(2)$

above. Then state if the process is in control $($Yes$/$No$)?$ Explain why or why

not to receive credit.$(2$ pts $)$

The next $8$ itineraries contain the following number of errors: $6,7,7,8,$

$4,8,6,5.($Plot this on the chart$).$