The CVSX Drug company has been evaluating several drug companies for their drug quality related to the chemical make up$.$ As a result of this on going effort Emma Ernst, a quality engineer, has taken ten samples of $15$ drugs each from an on going process to establish a p$-$chart for control. Her samples and the number of defectives in each are shown in the following table:

SAMPLE n NUMBER OF DEFECTIVE ITEMS IN THE SAMPLE

$1153$

$2151$

$3150$

$4150$

$5150$

$6152$

$7150$

$8153$

$9151$

$10150$

a$.$ Determine the p$$

$,$ Sp$,$ UCL and LCL for a p$-$chart of $95$ percent confidence $(1\mathrm{.}96$ standard deviations$).($Leave no cells blank $-$ be certain to enter $"0"$ wherever required. Round your answers to $3$ decimal places.$)$

p$$

Sp

UCL

LCL

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

multiple choice