The Big Black Bird Company produces fiberglass camper tops. The process for producing the tops must be controlled so as to keep the number of dimples low. When the process was in control, the defects shown to the right were found in 10 randomly selected camper tops over an extended period of time.

Top	Dimples
1	66
2	88
3	1616
4	1313
5	22
6	1212
7	99
8	55
9	77
10	44

Part 2a. Assuming 10 observations are adequate for this purpose, determine the

threethree-sigma

control limits for dimples per camper top.The

UCL Subscript cUCLc

equals

enter your response here

and

theLCL Subscript cLCLc

equals

enter your response here.

(Enter

your responses rounded to two decimal

places.

If your answer for

LCL Subscript cLCLc

is negative, enter this value as

0.)

Part 3b. Suppose that the next camper top has

1717

dimples. What can you say about the process now?

A.

The number of defects is

lessless

than the upper control limit, so

it is assumed that the process isitisassumedthattheprocessis

in control.

B.

Since the number of defects is close to the upper control limit, the results are inconclusive.

C.

The number of defects is

lessless

than the upper control limit, so

the process is nottheprocessisnot

in control.

D.

The number of defects is

greatergreater

than the upper control limit, so

it is assumed that the process isitisassumedthattheprocessis

in control.

E.

The number of defects is

greatergreater

than the upper control limit, so

the process is nottheprocessisnot

in control.