A process that is considered to be in control measures an ingredient in ounces. Below are the last 10 samples (each of size n = 5) taken. The population process standard deviation is 1.36

Samples	Item 1	Item 2	Item 3	Item 4	Item 5
1	11	10	9	10	11
2	9	9	12	11	10
3	14	9	9	9	8
4	9	9	11	11	9
5	12	10	8	11	9
6	10	9	8	12	9
7	9	11	9	7	10
8	13	11	8	9	9
9	9	9	11	13	8
10	10	12	9	7	12

a) Standard deviation of the sampling means =

CLx- ____________ ounces (round to three decimal places)

LCLx- ______________ ounces (round to three decimal places)

c) the control limits for the R-chart are:

UCLr= _______________________________ ounces (round tot hree decimal places)

LCLR= ____________________ ounces (round to three decimal places)

Based on the x chart is one or more samples beyond the conrol limits yes/ no

based on the r chart is one or more samples beyond the control limits? yes/ no