Question 1

The method that uses cost as an overriding basis for sample size is called:

Accepted Answer

A) The budget override approach. 
B) The sample cost approach. 
C) The"all you can afford"approach. 
D) The minimum cost expenditure approach.

Question 2

In practice,a number of different methods are used to determine sample size including those described as"other methods of size determination."Most of the other methods have limitations that make them undesirable.Define and describe"rule of thumb,""conventional sample size,"and amount of allocated budget sample approaches.List one major drawback of each.

Accepted Answer

The answer of In practice,a number of different methods are...

Question 3

A sample size decision is usually a compromise between what is theoretically perfect and what is practically feasible.

Accepted Answer

A) True 
 B)False

Question 4

Consider that we have nominal data(responses are categorical)and the responses are"Yes"or"No"to the question: "The next time you order pizza,will you use Domino's?"Which of the following sets of responses shows the MOST variability?

Accepted Answer

A) 55 percent say"Yes"and 45 percent say"No" 
B) 90 percent say"Yes"and 10 percent say"No" 
C) 70 percent say"Yes"and 30 percent say"No" 
D) 60 percent say"Yes"and 40 percent say"No"

Question 5

The variability believed to be in the population,the acceptable margin of sample error,and the level of confidence required in your estimates of the population values describe the basic elements of the central limit theorem.

Accepted Answer

A) True 
 B)False

Question 6

A table that relates ________ is a useful tool when deciding on the survey sample size.

Accepted Answer

A) data collection cost and sample error 
B) data collection and sample size 
C) deadline to completion and sample size 
D) research objectives to sample error

Question 7

When using ________,sample size is unrelated to accuracy,so cost-benefit considerations must be used.

Accepted Answer

A) nonprobability sampling 
B) probability sampling 
C) cluster sampling 
D) stratified sampling

Question 8

The larger a random sample,the more inaccurate,meaning the less margin of sample error.

Accepted Answer

A) True 
 B)False

Question 9

Only a non-probability sample,typically referred to as a random sample,is truly representative of the population and,second,the size of that random sample determines the sample's accuracy of findings.

Accepted Answer

A) True 
 B)False

Question 10

The ________ ignores the circumstances surrounding the study at hand and may well prove to be much more costly than would be the case if the sample size were determined correctly.

Accepted Answer

A) arbitrary approach 
B) statistical analysis approach 
C) variability approach 
D) conventional approach

Question 11

The marketing manager intuitively knows that small samples are less accurate,on average,than are large samples.But it is rare for a marketing manager to think in terms of sample error.

Accepted Answer

A) True 
 B)False

Question 12

"Percent rule of thumb"methods lose sight of some of the accuracy aspects of sampling;but are cost-effective when the population under study is large.

Accepted Answer

A) True 
 B)False

Question 13

To compute sample size,only three items are required.Of the following,which is NOT one of the items used to compute a sample size:

Accepted Answer

A) Sample subjects. 
B) Variability. 
C) Acceptable sample error. 
D) Confidence level.

Question 14

The size of a sample has everything to do with its representativeness.Sample size affects the sample accuracy.

Accepted Answer

A) True 
 B)False

Question 15

The amount of sample error the researcher will permit to be associated with the survey is relational margin of sample error.

Accepted Answer

A) True 
 B)False

Question 16

________ level of confidence is standard in sample size determination.

Accepted Answer

A) 90% or 95% 
B) 99% or 100% 
C) 95% or 99% 
D) 90% or 100%

Question 17

With regard to variability,which of the following is true?

Accepted Answer

A) p is always less than q 
B) q is always less than p 
C) p+q=1.96 
D) q=100%-p

Question 18

The only time the population size is a consideration in sample size determination is in the case of a"small population,"

Accepted Answer

A) True 
 B)False

Question 19

When determining sample size,the conventional approach would NOT be:

Accepted Answer

A) Five percent of the entire population. 
B) The average of the sample sizes of similar studies. 
C) The sample size of previous surveys. 
D) The sample sizes normally reported in published reports.

Question 20

A ________ is a range whose endpoints define a certain percentage of the responses to a question.

Accepted Answer

A) sample size 
B) sample range 
C) confidence interval 
D) confidence endpoint

Exam 10: Determining the Size of a Sample

The method that uses cost as an overriding basis for sample size is called:

A sample size decision is usually a compromise between what is theoretically perfect and what is practically feasible.

Consider that we have nominal data(responses are categorical) and the responses are"Yes"or"No"to the question: "The next time you order pizza,will you use Domino's?"Which of the following sets of responses shows the MOST variability?

The variability believed to be in the population,the acceptable margin of sample error,and the level of confidence required in your estimates of the population values describe the basic elements of the central limit theorem.

A table that relates ________ is a useful tool when deciding on the survey sample size.

When using ________,sample size is unrelated to accuracy,so cost-benefit considerations must be used.

The larger a random sample,the more inaccurate,meaning the less margin of sample error.

Only a non-probability sample,typically referred to as a random sample,is truly representative of the population and,second,the size of that random sample determines the sample's accuracy of findings.

The ________ ignores the circumstances surrounding the study at hand and may well prove to be much more costly than would be the case if the sample size were determined correctly.

The marketing manager intuitively knows that small samples are less accurate,on average,than are large samples.But it is rare for a marketing manager to think in terms of sample error.

"Percent rule of thumb"methods lose sight of some of the accuracy aspects of sampling;but are cost-effective when the population under study is large.

To compute sample size,only three items are required.Of the following,which is NOT one of the items used to compute a sample size:

The size of a sample has everything to do with its representativeness.Sample size affects the sample accuracy.

The amount of sample error the researcher will permit to be associated with the survey is relational margin of sample error.

________ level of confidence is standard in sample size determination.

With regard to variability,which of the following is true?

The only time the population size is a consideration in sample size determination is in the case of a"small population,"

When determining sample size,the conventional approach would NOT be:

A ________ is a range whose endpoints define a certain percentage of the responses to a question.