Hi, This is Operations Management

ISO-9001 determines

Select one:

a. process capability.

b. random cause of variation.

c. if vendors are performing well.

d. if the company practices its written procedures.

An electric company produces light bulbs. The following data on the number of lumens for 40 watt light bulbs were collected for 5 samples as follows

Sample	1	2	3	4
1	604	612	588	600
2	597	601	607	603
3	581	570	585	592
4	620	605	595	588
5	590	614	608	604

What is the upper control limits for X-Charts given the following data D3=0

D4= 2.282

A2= 0.729

Select one:

a.

2991

b.

581.9

c.

598.2

d.

614.5