Question 1

Which of the following is needed before a confidence interval can be established for a population mean?

Accepted Answer

A) A confidence level 
B) A point estimate of the population mean 
C) An estimate of the sampling error associated with the sample mean 
D) All of the above. 
E) Both a and b. 
A) A confidence level 
B) A point estimate of the population mean 
C) An estimate of the sampling error associated with the sample mean 
D) All of the above. 
E) Both a and b. D

Question 2

Samples are often used to infer something about a population rather than canvassing the population itself because they are typically

Accepted Answer

A) cheaper than complete counts. 
B) faster than complete counts. 
C) more accurate than complete counts. 
D) Both a and b. 
E) a,b,and c. 
A) cheaper than complete counts. 
B) faster than complete counts. 
C) more accurate than complete counts. 
D) Both a and b. 
E) a,b,and c. E

Question 3

All of the following are probability sampling plans EXCEPT

Accepted Answer

A) quota. 
B) area. 
C) cluster. 
D) disproportionate stratified. 
E) systematic. 
A) quota. 
B) area. 
C) cluster. 
D) disproportionate stratified. 
E) systematic. A

Question 4

In essence,the Central-Limit Theorem holds that

Accepted Answer

A) if the sample is large enough,the distribution of sample means will be normal. 
B) if the sample is large enough,all sample means will fall within one standard deviation of the population mean. 
C) when the variable of interest is normally distributed within the population,the sample mean will be normally distributed. 
D) the sample variance will be equal to the population variance if the sample size is large enough. 
E) sample sizes larger than n=2 will insure that the distribution of sample means will be normal. 
A) if the sample is large enough,the distribution of sample means will be normal. 
B) if the sample is large enough,all sample means will fall within one standard deviation of the population mean. 
C) when the variable of interest is normally distributed within the population,the sample mean will be normally distributed. 
D) the sample variance will be equal to the population variance if the sample size is large enough. 
E) sample sizes larger than n=2 will insure that the distribution of sample means will be normal.

Question 5

If a newspaper editor asks a reporter to interview thirty males and thirty females from each of three geographical areas of a particular city for a prospective story,what type of sampling procedure is being used?

Accepted Answer

A) Simple random sample 
B) Convenience sample 
C) Quota sample 
D) Systematic sample 
E) Stratified sample 
A) Simple random sample 
B) Convenience sample 
C) Quota sample 
D) Systematic sample 
E) Stratified sample

Question 6

Which of the following is NOT TRUE for simple random sampling?

Accepted Answer

A) Each element has a known chance of being selected. 
B) Each element has a non-zero chance of being selected. 
C) Each element has an equal chance of being selected. 
D) Each combination of n population elements has an equal chance of being selected. 
E) All of the above are true statements. 
A) Each element has a known chance of being selected. 
B) Each element has a non-zero chance of being selected. 
C) Each element has an equal chance of being selected. 
D) Each combination of n population elements has an equal chance of being selected. 
E) All of the above are true statements.

Question 7

Which of the following is NOT a probability sample?

Accepted Answer

A) Simple random sample 
B) Stratified sample 
C) Cluster sample 
D) Judgment sample 
E) All of the above are probability samples. 
A) Simple random sample 
B) Stratified sample 
C) Cluster sample 
D) Judgment sample 
E) All of the above are probability samples.

Question 8

Snowball samples are an example of

Accepted Answer

A) convenience sampling. 
B) judgment sampling. 
C) quota sampling. 
D) simple random sampling. 
E) stratified sampling. 
A) convenience sampling. 
B) judgment sampling. 
C) quota sampling. 
D) simple random sampling. 
E) stratified sampling.

Question 9

Respondents can misunderstand,guess,lose attention,suffer distractions,and fatigue.These are all examples of unintentional respondent error and they all contribute to nonsampling error.

Accepted Answer

A) True 
 B)False

Question 10

A researcher divides the city of Flint,Michigan,into 500 blocks of 10 households each.He requires a sample of 400 households.He selects a sample by randomly selecting 100 blocks and randomly selecting 4 households per block.This is an example of ____.

Accepted Answer

A) systematic sampling 
B) two-stage area sampling 
C) probability-proportional-to-size sampling 
D) one-stage area sampling 
E) sequential sampling 
A) systematic sampling 
B) two-stage area sampling 
C) probability-proportional-to-size sampling 
D) one-stage area sampling 
E) sequential sampling

Question 11

For simple random sampling,the mean of all possible sample means is equal to the population mean when which of the following conditions is true.Choose the best possible answer.

Accepted Answer

A) Sampling is with replacement. 
B) Sampling is without replacement. 
C) Sampling is from an infinite population. 
D) Sampling is from a finite population. 
E) Sampling is with or without replacement and from an infinite or finite population. 
A) Sampling is with replacement. 
B) Sampling is without replacement. 
C) Sampling is from an infinite population. 
D) Sampling is from a finite population. 
E) Sampling is with or without replacement and from an infinite or finite population.

Question 12

One indication of homogeneity within strata is the

Accepted Answer

A) size of the stratum's sample mean. 
B) size of the overall sample mean. 
C) number of elements within each stratum. 
D) weights used to calculate the overall variance of estimate. 
E) size of the standard error of estimate by stratum. 
A) size of the stratum's sample mean. 
B) size of the overall sample mean. 
C) number of elements within each stratum. 
D) weights used to calculate the overall variance of estimate. 
E) size of the standard error of estimate by stratum.

Question 13

A market researcher divides the Dallas metropolitan area into blocks having roughly equal populations.He then selects a random sample of blocks and sends interviewers to each block.The interviewers are instructed to interview every eighth dwelling unit.This is ____ sampling.

Accepted Answer

A) one-stage area 
B) two-stage area 
C) quota 
D) two-stage systematic 
E) stratified 
A) one-stage area 
B) two-stage area 
C) quota 
D) two-stage systematic 
E) stratified

Question 14

In practice,simple random sampling should be strongly considered

Accepted Answer

A) if the population is small and can be numbered easily. 
B) in telephone surveys where random digit dialing programs may be used to generate numbers. 
C) when population units are stored in an electronic file allowing computer programs to randomly select the sample. 
D) All of the above are situations that allow for the practical application of simple random sampling. 
E) None of the situations allow the practical application of simple random sampling. 
A) if the population is small and can be numbered easily. 
B) in telephone surveys where random digit dialing programs may be used to generate numbers. 
C) when population units are stored in an electronic file allowing computer programs to randomly select the sample. 
D) All of the above are situations that allow for the practical application of simple random sampling. 
E) None of the situations allow the practical application of simple random sampling.

Question 15

A(n)____________________ is a subset of elements from a larger group of objects.

Accepted Answer

The answer of A(n)____________________ is a subset of elements from...

Question 16

In order to use a table of random numbers to draw a simple random sample,the researcher must

Accepted Answer

A) serially number the sample elements. 
B) specify the parent population distribution. 
C) calculate the population variance. 
D) serially number the population elements. 
E) assume that the central-limit theorem holds for the population in question. 
A) serially number the sample elements. 
B) specify the parent population distribution. 
C) calculate the population variance. 
D) serially number the population elements. 
E) assume that the central-limit theorem holds for the population in question.

Question 17

A complete canvass of a population is called a

Accepted Answer

A) sample. 
B) census. 
C) sampling frame. 
D) population. 
E) directory. 
A) sample. 
B) census. 
C) sampling frame. 
D) population. 
E) directory.

Question 18

In proportionate stratified sampling,the size of each stratum is the basis for allocating the total sample across the population strata.

Accepted Answer

A) True 
 B)False

Question 19

With a normal distribution,we know that approximately

Accepted Answer

A) 95% of all observations will fall within one standard deviation of the mean. 
B) 99% of all observations will fall within one standard deviation of the mean. 
C) 95% of all observations will fall within two standard deviations of the mean. 
D) 99% of all observations will fall within two standard deviations of the mean. 
E) 95% of all observations will fall within three standard deviations of the mean. 
A) 95% of all observations will fall within one standard deviation of the mean. 
B) 99% of all observations will fall within one standard deviation of the mean. 
C) 95% of all observations will fall within two standard deviations of the mean. 
D) 99% of all observations will fall within two standard deviations of the mean. 
E) 95% of all observations will fall within three standard deviations of the mean.

Question 20

Which of the following is FALSE with regard to stratified sampling?

Accepted Answer

A) A stratified random sample is drawn by dividing the parent population into mutually exclusive and exhaustive subsets and by then taking a random sample of these subsets. 
B) The basic rule by which we stratify suggests the resulting strata should be as homogeneous as possible. 
C) When sampling from a population that is highly skewed,a stratified sample generally provides the most representative sample. 
D) A market researcher needs information about parts of the population,as well as the total population.He should therefore plan on using a stratified random sample. 
E) Stratified samples are more statistically efficient than simple random samples. 
A) A stratified random sample is drawn by dividing the parent population into mutually exclusive and exhaustive subsets and by then taking a random sample of these subsets. 
B) The basic rule by which we stratify suggests the resulting strata should be as homogeneous as possible. 
C) When sampling from a population that is highly skewed,a stratified sample generally provides the most representative sample. 
D) A market researcher needs information about parts of the population,as well as the total population.He should therefore plan on using a stratified random sample. 
E) Stratified samples are more statistically efficient than simple random samples.

Exam 15: Developing the Sampling Plan

Which of the following is needed before a confidence interval can be established for a population mean?

Samples are often used to infer something about a population rather than canvassing the population itself because they are typically

All of the following are probability sampling plans EXCEPT

In essence,the Central-Limit Theorem holds that

If a newspaper editor asks a reporter to interview thirty males and thirty females from each of three geographical areas of a particular city for a prospective story,what type of sampling procedure is being used?

Which of the following is NOT TRUE for simple random sampling?

Which of the following is NOT a probability sample?

Snowball samples are an example of

Respondents can misunderstand,guess,lose attention,suffer distractions,and fatigue.These are all examples of unintentional respondent error and they all contribute to nonsampling error.

A researcher divides the city of Flint,Michigan,into 500 blocks of 10 households each.He requires a sample of 400 households.He selects a sample by randomly selecting 100 blocks and randomly selecting 4 households per block.This is an example of ____.

For simple random sampling,the mean of all possible sample means is equal to the population mean when which of the following conditions is true.Choose the best possible answer.

One indication of homogeneity within strata is the

A market researcher divides the Dallas metropolitan area into blocks having roughly equal populations.He then selects a random sample of blocks and sends interviewers to each block.The interviewers are instructed to interview every eighth dwelling unit.This is ____ sampling.

In practice,simple random sampling should be strongly considered

A(n)____________________ is a subset of elements from a larger group of objects.

In order to use a table of random numbers to draw a simple random sample,the researcher must

A complete canvass of a population is called a

In proportionate stratified sampling,the size of each stratum is the basis for allocating the total sample across the population strata.

With a normal distribution,we know that approximately

Which of the following is FALSE with regard to stratified sampling?

The Role of Marketing Research

Gathering Marketing Intelligence: The Systems Approach

Gathering Marketing Intelligence: The Project Approach

Problem Formulation

Types of Research Design and Exploratory Research

Descriptive and Causal Research Designs

Secondary Data

Standardized Marketing Information Services

Collecting Primary Data

Collecting Information by Communication

Collecting Information by Observation

Asking Good Questions: Measurement Basics

Measuring Attitudes and Other Variables

Designing the Questionnaire or Observation Form

Determining Sample Size

Collecting the Data: Nonsampling Errors and Response Rate Calculation

Data Analysis: Preliminary Steps

Data Analysis: Analyzing Individual Variables and Basics of Hypothesis Testing

Data Analysis: Analyzing Multiple Variables Simultaneously

The Research Report

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