A process in statistical control has a mean of 100.0 and standard deviation of 3.0. x and R charts with subgroups of size 7 are used to monitor the process. If the process center shifts downward to 96.0, what is the probability of first point falling outside x chart control limits is on the third sample taken after the shift?

option a is correct.

step-by-step explanation:

scale factor: it is used to find proportional measurements.

proportions means having the same ratio.

scale factor is the ratio of the model measurement to the actual measurement in a simplest form.

or we can say that the ratio of any two corresponding lengths in two similar geometric figures

if the scale factor is more than 1, then it is an enlargement,

if the scale factor less than 1, then it is a reduction.

given the two geometric figure:

by definition of proportions, we have

60%

13cm

step-by-step explanation:

(apex)