QUESTION 6. A statistic

a)Does not have a sampling distribution.

b) Isa function of the population mean.

c) Isused to test hypotheses about unknown parameters.

d)Contains unknown parameters in its computation.

QUESTION

7. Write the name of the appropriate sampling distribution or sample test

statistic for:

a)

The mean of a normal distribution with known variance?

b)

The proportion of defectives in a finite population?

c)

The ratio of MSTreatments/MSResidual ?

d)

The quantity, () 2 =1 () 2 =1 1 ?

(REFER

to the picture attached )

QUESTION

8. Statistical quality control deals principally with

a)Customer needs

b)Design criteria

c)Reduction of variability

d)Public perception