Ten samples of $15$ parts each were taken from an ongoing process to establish a p$-$chart for control. The samples and the number of defectives in each are shown in the following table:

SAMPLE n Number of Defective Items in the Sample

$1153$

$2153$

$3151$

$4152$

$5150$

$6153$

$7153$

$8152$

$9150$

$10153$

b$.$ What comments can you make about the process? Why?

b$\mathrm{.}1$ Process is out of statistical control

b$\mathrm{.}2$ Process is in statistical control.