Chapter 7

Question 1

Hypothesis testing for population mean

Answer 1

A

Question 2

Large sample

Answer 2

K

Question 3

N<30 and normal population

Answer 3

K

Question 4

Null hypothesis

Answer 4

S

Question 5

Alternative hypothesis

Answer 5

S

Question 6

P value and alpha

Answer 6

D

Question 7

If p value less than or equal alpha

Answer 7

D

Question 8

If p value bigger than alpha

Answer 8

S

Question 9

Type of error

Answer 9

F

Question 10

Single population mean

Answer 10

S

Question 11

Diiference between two population mean

Answer 11

D

Question 12

Diiference between two population mean

Answer 12

D

Question 13

Paired comparisons

Answer 13

S

Question 14

Paired comparisons

Answer 14

S

Question 15

Single population proportion

Answer 15

S

Question 16

Single population variance

Answer 16

S

Question 17

The ratio of two population variance

Answer 17

S

Question 18

Assumption of chapter 7

Answer 18

C

Question 19

mean of all k population means

Answer 19

Y

Question 20

represents the difference between the mean of the jth population and the grand
mean

Answer 20

Y

Question 21

amount by which an individual measurement differs from the mean
of the population to which it belongs

Answer 21

H

Question 22

The k sets of observed data constitute k independent random samples from the
respective populations.

Answer 22

Y

Question 23

Each of the populations from which the samples come is normally distributed with
mean mj and variance s 2 j.

Answer 23

Y

Question 24

Each of the populations has the same variance. That is, s 2
1¼s2
2 ¼ …s2
k ¼ s 2 the
common variance

Answer 24

Y

Question 25

The tj are unknown constants and P tj ¼ 0 since the sum of all deviations of the mj
from their mean, m, is zero.

Answer 25

Y

Question 26

The eij have a mean of 0, since the mean of xij is mj.

Answer 26

H

Question 27

The eij have a variance equal to the variance of the xij,

Answer 27

Y

Question 28

The eij are normally (and independently) distributed.

Answer 28

H

Question 29

typical value from the overall population.

Answer 29

Y

Question 30

Each xij that is observed constitutes a random independent sample of size 1 from one
of the kn populations represented.

Answer 30

T

Question 31

Each of these kn populations is normally distributed with mean mij and the same
variance s2. This implies that the eij are independently and normally distributed with
mean 0 and variance s2.

Answer 31

T

Question 32

The block and treatment effects are additive. This assumption may be interpreted to
mean that there is no interaction between treatments and blocks.

Answer 32

U

Question 33

1. The subjects under study constitute a simple random sample from a population of

Answer 33

Y

Question 34

Each observation is an independent simple random sample of size 1 from each of kn
populations, where n is the number of subjects and k is the number of treatments to
which each subject is exposed.

Answer 34

U

Question 35

The kn populations have potentially different means, but they all have the same
variance.

Answer 35

Y

Question 36

The k treatments are fixed; that is, they are the only treatments about which we have
an interest in the current situation. We do not wish to make inferences to some larger
collection of treatments.

Answer 36

U

Question 37

There is no interaction between treatments and subjects; that is, the treatment and
subject effects are additive.

Answer 37

Y

Question 38

The observations in each of the ab cells constitute a random independent sample of
size n drawn from the population defined by the particular combination of the levels of the two factors.

Answer 38

Y

Question 39

Each of the ab populations is normally distributed.

Answer 39

Y

Question 40

The populations all have the same variance.

Answer 40

H