Johnson

& Johnson manufactures needles that are subjected to a bend test. They use

statistical process control (SPC) and the results (measured in grams) are

plotted on a chart.

If the process average is 26,1 and the

average range is 5; what will the control limits be if the sample size n=8? The

factor for calculation of control limits is 0,373 for sample size n=8.

Which statement(s) is/are true?

a     The

process is "out of control".

b     The

process is "in control".

c     The

upper control limit equals 27,965.

d     The

upper control limit equals 24,235.

e    The lower control limit equals 27,965.