OUESTION $3$:

a$)$ Given the following set of data, calculate the Centerline Value of a X$-$bar Chart.

Set Data : $5\mathrm{.}5,7,7\mathrm{.}25,4\mathrm{.}9,6\mathrm{.}32,5\mathrm{.}74$

b$)$ Using the data set above, calculate Upper Control Limit

c$)$ Is the following process $"$in control"? If not, state the rule that supports your answer.

d$)$ Is this process in Control? If not, state the rule that supports your answer.

s $-$ UCL

enterline

$3-$ LCL