Question 3: A Production process is considered in control if no more then 5% of the items produced are defective. Samples of size 120 are used for the inspection process.

1.The standard error of population In this case is

a.0.0046

b.0.0160

c.0.0197

d.0.0207

e.0.0035

2.The upper control limit is

a.0.04987

b..01097

c.0.0637

d.0.0080

e.12.789

3.The lower control limit is

a.0.0363

b.0.1450

c.-0.0097

d.1.0207

e.0.0000

4.The means of 5 samples were 0.147, .1096, 0.0499, 0.18, and 0.207. Is the process in control?

a.In control

b.Not in control

c.Samples 1,2,3 ar ein control others are now

d.Samples 3,4,5 are in control while others are not

e.Samples are indicative