Question 1

If we are using the sample size formula to be used when estimating a mean and we are trying to determine e,we are trying to indicate:

Accepted Answer

A) the allowable error. 
B) the proportion of s to S in the sample. 
C) the range of possible z scores in the population. 
D) the percentage of the respondents who will answer p. 
E) the percentage of the respondents who will answer q. 
A) the allowable error. 
B) the proportion of s to S in the sample. 
C) the range of possible z scores in the population. 
D) the percentage of the respondents who will answer p. 
E) the percentage of the respondents who will answer q.

Question 2

If you were to graph sample accuracy and sample size,which of the following generalizations would be most accurate?

Accepted Answer

A) Accuracy is very low,even with small sample sizes of 50 or below. 
B) Accuracy constantly increases as sample size increases;a sample of 2,000 is four times more accurate than a sample of 500. 
C) With increases in sample size,sample accuracy decreases. 
D) We cannot graph sample size and accuracy because we must also include the level of confidence and the variability within the sample data. 
E) Accuracy increases rapidly when sample size increases up to about 500 and then levels off. 
A) Accuracy is very low,even with small sample sizes of 50 or below. 
B) Accuracy constantly increases as sample size increases;a sample of 2,000 is four times more accurate than a sample of 500. 
C) With increases in sample size,sample accuracy decreases. 
D) We cannot graph sample size and accuracy because we must also include the level of confidence and the variability within the sample data. 
E) Accuracy increases rapidly when sample size increases up to about 500 and then levels off.

Question 3

One of the reasons why a marketing practitioner should have a basic understanding of sample size determination is because:

Accepted Answer

A) many practitioners have a false belief that sample size doesn't determine a sample's representativeness. 
B) it helps managers to manage their resources better. 
C) a marketing manager should understand that a sample's representativeness is not related to its accuracy. 
D) the size of the sample is never a major cost factor. 
E) managers always have a "small sample bias";they believe small samples are more accurate. 
A) many practitioners have a false belief that sample size doesn't determine a sample's representativeness. 
B) it helps managers to manage their resources better. 
C) a marketing manager should understand that a sample's representativeness is not related to its accuracy. 
D) the size of the sample is never a major cost factor. 
E) managers always have a "small sample bias";they believe small samples are more accurate.

Question 4

A sample that has been determined by using a cost basis approach would be when:

Accepted Answer

A) the manager has discussed the statistical analysis with the research project director. 
B) the manager has discussed the competitor's marketing results with the research project director. 
C) the manager has discussed the previous marketing study with the research project director. 
D) the manager has discussed the budget with the research project director and they have decided to spend "all they can afford" on the project. 
E) none of the above 
A) the manager has discussed the statistical analysis with the research project director. 
B) the manager has discussed the competitor's marketing results with the research project director. 
C) the manager has discussed the previous marketing study with the research project director. 
D) the manager has discussed the budget with the research project director and they have decided to spend "all they can afford" on the project. 
E) none of the above

Question 5

Large sample size bias refers to a belief that sample size determines a sample's representativeness.

Accepted Answer

A) True 
 B)False

Question 6

Sample size has a direct bearing on how accurate the sample's findings are relative to the true values in the population.

Accepted Answer

A) True 
 B)False

Question 7

Unfortunately,many managers falsely believe that sample size is:

Accepted Answer

A) related to proper data analysis. 
B) related to the representativeness of the sample. 
C) determined by computer programs. 
D) an irrelevant "statistical" technicality issue. 
E) related to the level of accuracy desired. 
A) related to proper data analysis. 
B) related to the representativeness of the sample. 
C) determined by computer programs. 
D) an irrelevant "statistical" technicality issue. 
E) related to the level of accuracy desired.

Question 8

Generally,a small population situation is one in which the sample exceeds 5 percent of the total population size.

Accepted Answer

A) True 
 B)False

Question 9

A random sample must be perfectly accurate to be considered a very good representation of the population.

Accepted Answer

A) True 
 B)False

Question 10

National opinion polls tend to use sample sizes ranging from:

Accepted Answer

A) 10 to 100 
B) 1,000 to 1,200 
C) 50,000 to 100,000 
D) 1 million to 5 million 
E) 10 million to 15 million 
A) 10 to 100 
B) 1,000 to 1,200 
C) 50,000 to 100,000 
D) 1 million to 5 million 
E) 10 million to 15 million

Question 11

Political Research Associates has been hired to conduct a survey to determine the percentage of voters.If the election were held today,who would vote for Candidate X for president? Candidate X has not even announced her candidacy for president and there are no previous surveys that would indicate voter preferences.Still,Political Research Associates must estimate the variability in the population in order to determine the size of the sample they need for their survey for Candidate X.Which of the following would be the wisest choice for estimating variability?

Accepted Answer

A) ±5 percent 
B) p = 1.96 
C) q = 100 percent,p = 50 percent 
D) p = 50 percent,q = 50 percent 
E) n = 51 percent,q = 49 percent 
A) ±5 percent 
B) p = 1.96 
C) q = 100 percent,p = 50 percent 
D) p = 50 percent,q = 50 percent 
E) n = 51 percent,q = 49 percent

Question 12

Which of the following is the most correct method of determining sample size?

Accepted Answer

A) percentage of population approach 
B) all that can be afforded approach 
C) all that time will permit approach 
D) using the "100" for local study;"1,000" for national study approach 
E) the confidence interval approach 
A) percentage of population approach 
B) all that can be afforded approach 
C) all that time will permit approach 
D) using the "100" for local study;"1,000" for national study approach 
E) the confidence interval approach

Question 13

Sample size does not have to be "huge" in order to have reasonably accurate data.For example,samples that are 400 or less may provide reasonably accurate information.

Accepted Answer

A) True 
 B)False

Question 14

The only time the population size is important in the calculation of sample size is:

Accepted Answer

A) always;all formulas include N,a count of the total population. 
B) when the population is very,very large. 
C) when the population is not normal. 
D) when the level of accuracy needs to be less than ±5 percent. 
E) when the population is small,relative to the sample size. 
A) always;all formulas include N,a count of the total population. 
B) when the population is very,very large. 
C) when the population is not normal. 
D) when the level of accuracy needs to be less than ±5 percent. 
E) when the population is small,relative to the sample size.

Question 15

A study is to be performed for a local restaurant,McGuire's,and Mr.McGuire wants to know the awareness of the restaurant name as well as satisfaction with food,service,and prices.Furthermore,being in the restaurant business for many years,Mr.McGuire is certain that he has very different clientele depending on which meal and whether they are there during the weekdays or weekends.Therefore,he wants to know answers to these issues by subgroups such as those who have eaten lunch meals,dinner meals,weekday patrons,and weekend patrons.Given these analysis goals,which sample size approach should be considered?

Accepted Answer

A) arbitrary approach 
B) conventional approach 
C) statistical analysis approach 
D) confidence percentage approach 
E) the cost basis approach 
A) arbitrary approach 
B) conventional approach 
C) statistical analysis approach 
D) confidence percentage approach 
E) the cost basis approach

Question 16

When attempting to balance the sample size with the cost of data collection,the textbook illustrated that it is helpful to:

Accepted Answer

A) use an Excel spreadsheet. 
B) rely on financial leveraging. 
C) use a table that depicts data collection cost and sample error for different sample sizes. 
D) use a table that depicts data collection cost and the costs of computing different sample sizes. 
E) use a table that depicts data collection cost contrasted to the cost of not doing research. 
A) use an Excel spreadsheet. 
B) rely on financial leveraging. 
C) use a table that depicts data collection cost and sample error for different sample sizes. 
D) use a table that depicts data collection cost and the costs of computing different sample sizes. 
E) use a table that depicts data collection cost contrasted to the cost of not doing research.

Question 17

It is important that marketing researchers try to educate managers/clients on the determinants of sample size as an ethical issue arises when the researcher benefits by using larger samples.

Accepted Answer

A) True 
 B)False

Question 18

Sampling error is the difference between the sample findings and the findings that the client expected to have prior to the survey.

Accepted Answer

A) True 
 B)False

Question 19

Which of the following is NOT a component needed for SSI's Formula for determining how many telephone numbers are needed?

Accepted Answer

A) incidence rate 
B) completion rate 
C) working phone rate 
D) completed interviews required 
E) number of qualified interviewers 
A) incidence rate 
B) completion rate 
C) working phone rate 
D) completed interviews required 
E) number of qualified interviewers

Question 20

Variability (standard deviation)of a population where a mean is being estimated may be estimated by dividing the range by 6.

Accepted Answer

A) True 
 B)False

If we are using the sample size formula to be used when estimating a mean and we are trying to determine e,we are trying to indicate:

If you were to graph sample accuracy and sample size,which of the following generalizations would be most accurate?

One of the reasons why a marketing practitioner should have a basic understanding of sample size determination is because:

A sample that has been determined by using a cost basis approach would be when:

Large sample size bias refers to a belief that sample size determines a sample's representativeness.

Sample size has a direct bearing on how accurate the sample's findings are relative to the true values in the population.

Unfortunately,many managers falsely believe that sample size is:

Generally,a small population situation is one in which the sample exceeds 5 percent of the total population size.

A random sample must be perfectly accurate to be considered a very good representation of the population.

National opinion polls tend to use sample sizes ranging from:

Which of the following is the most correct method of determining sample size?

Sample size does not have to be "huge" in order to have reasonably accurate data.For example,samples that are 400 or less may provide reasonably accurate information.

The only time the population size is important in the calculation of sample size is:

When attempting to balance the sample size with the cost of data collection,the textbook illustrated that it is helpful to:

It is important that marketing researchers try to educate managers/clients on the determinants of sample size as an ethical issue arises when the researcher benefits by using larger samples.

Sampling error is the difference between the sample findings and the findings that the client expected to have prior to the survey.

Which of the following is NOT a component needed for SSI's Formula for determining how many telephone numbers are needed?

Variability (standard deviation)of a population where a mean is being estimated may be estimated by dividing the range by 6.

Introduction to Marketing Research

The Marketing Research Industry

The Marketing Research Process Defining the Problem and Research Objectives

Research Design

Secondary Data Packaged Information

Utilizing Exploratory and Qualitative Research Techniques

Evaluating Survey Data Collection Methods

Understanding Measurement, developing Questions, and Designing the Questionnaire

Selecting the Sample

Dealing With Fieldwork and Data Quality

Using Basic Descriptive Analysis, performing Population Estimates, and Testing Hypotheses

Implementing Basic Differences Tests

Making Use of Associations Tests

Understanding Regression Analysis Basics

Writing the Research Report

Filters

Exam 10: Determining the Size of a Sample

If we are using the sample size formula to be used when estimating a mean and we are trying to determine e,we are trying to indicate:

If you were to graph sample accuracy and sample size,which of the following generalizations would be most accurate?

One of the reasons why a marketing practitioner should have a basic understanding of sample size determination is because:

A sample that has been determined by using a cost basis approach would be when:

Large sample size bias refers to a belief that sample size determines a sample's representativeness.

Sample size has a direct bearing on how accurate the sample's findings are relative to the true values in the population.

Unfortunately,many managers falsely believe that sample size is:

Generally,a small population situation is one in which the sample exceeds 5 percent of the total population size.

A random sample must be perfectly accurate to be considered a very good representation of the population.

National opinion polls tend to use sample sizes ranging from:

Which of the following is the most correct method of determining sample size?

Sample size does not have to be "huge" in order to have reasonably accurate data.For example,samples that are 400 or less may provide reasonably accurate information.

The only time the population size is important in the calculation of sample size is:

When attempting to balance the sample size with the cost of data collection,the textbook illustrated that it is helpful to:

It is important that marketing researchers try to educate managers/clients on the determinants of sample size as an ethical issue arises when the researcher benefits by using larger samples.

Sampling error is the difference between the sample findings and the findings that the client expected to have prior to the survey.

Which of the following is NOT a component needed for SSI's Formula for determining how many telephone numbers are needed?

Variability (standard deviation)of a population where a mean is being estimated may be estimated by dividing the range by 6.

Introduction to Marketing Research

The Marketing Research Industry

The Marketing Research Process Defining the Problem and Research Objectives

Research Design

Secondary Data Packaged Information

Utilizing Exploratory and Qualitative Research Techniques

Evaluating Survey Data Collection Methods

Understanding Measurement, developing Questions, and Designing the Questionnaire

Selecting the Sample

Dealing With Fieldwork and Data Quality

Using Basic Descriptive Analysis, performing Population Estimates, and Testing Hypotheses

Implementing Basic Differences Tests

Making Use of Associations Tests

Understanding Regression Analysis Basics

Writing the Research Report

Filters