Lesson 4 Exam
Question 1
Sampling a geographical area using area sampling is a form of:
a) systematic, geographic sampling.
b) simple random sampling.
c) nonprobability sampling.
d) cluster sampling.
Question 2
Simple random sampling is not a wise choice when you have:
a) a large population.
b) a small population.
c) a sample frame in electronic format.
d) a large population that is not in electronic format.
Question 3
If we define our population as all households in the city of Chicago, Illinois, and we use the Chicago telephone directory from which to draw our sample units, we would likely have:
a) a survey with sample frame error.
b) a representative survey.
c) a survey containing no errors.
d) a survey with a poorly defined master list.
Question 4
Reasons for taking a sample instead of a census include:
a) cost.
b) inability of research firms to handle huge amounts of data generated by a census on a large population.
c) There is no good reason; a census is preferred over a sample.
d) A and B
Question 5
It is impossible to determine the probability when using nonprobability methods because:
a) the selection technique is subjective.
b) the population size is known.
c) the population size is unknown.
d) the selection technique is objective.
Question 6
In _______ a sampling, the two-step approach is more costly than the one-step approach because more areas and time are involved.
a) population
b) area
c) unit
d) census
Question 7
The target population for the U.S Census is:
a) all households in the United States.
b) as many people as can be convinced to fill out the survey.
c) a certain percentage of the population.
d) an equal number of people from each region of the United States.
Question 8
A sampling method that separates the population into different subgroups and then samples one or some of these subgroups is:
a) cluster sampling.
b) simple sampling.
c) stratified sampling.
d) systematic sampling.
Question 9
Sampling error is caused by two factors; one of them is:
a) the size of the population.
b) the method of the sample unit definition.
c) the method of sample selection.
d) the method of population selection.
Question 10
In stratified sampling, we should always ensure that the sample drawn for each stratum is:
a) equal.
b) proportionate to the stratum's proportion of the total population.
c) of the appropriate size to ensure statistical efficiency.
d) proportionate to the stratum's proportion of the total census.
Question 11
Which of the following may be used to overcome the problems of unlisted and new telephone numbers in a telephone directory?
a) Systematic sampling
b) Random digit dialing
c) CATI systems
d) A different format
Question 12
Which of the following sample plans would NOT be considered a probability sample?
a) Simple random sample
b) Systematic sample
c) Cluster sample
d) Judgment sample
Question 13
A subset of the population that should represent the entire group is known as a:
a) population.
b) sample unit.
c) census.
d) sample.
Question 14
A master list of all the sample units in the population is known as the:
a) sample list.
b) population master list.
c) master frame.
d) sample frame.
Question 15
One of the reasons systematic sampling is faster than simple random sampling is that the population size:
a) needs to be counted and numbered.
b) does not need to be known.
c) may be estimated and each element not numbered.
d) cannot be known.
Question 16
Calculation of the skip interval is important in which sampling plan?
a) Simple random sample
b) Systematic sample
c) "Skip" sample
d) Cluster sample
Question 17
The __________ used in systematic sampling is computed by dividing the population list size by the sample size.
a) skip interval
b) representative data
c) containing error
d) master list
Question 18
Which of the following is the BEST definition of cluster sampling?
a) The population is divided into subgroups and a simple random sample is taken from each subgroup.
b) The population is divided into subgroups; subgroups are combined into clusters, and subsets of clusters are sampled.
c) The population is divided into subgroups and a single/or several subgroup(s) is/are then selected from which either a census or a sample is drawn.
d) The population is divided into subgroups and a single/or several subgroup(s) is/are then selected from which only a sample is drawn.
Question 19
A sampling method that separates the population into different subgroups and then samples all of these subgroups is:
a) stratified sampling.
b) area sampling.
c) cluster sampling.
d) simple sampling.
Question 20
You should obtain a listing of the population after:
a) defining the relevant population.
b) accessing the population.
c) designing the sample plan.
d) drawing the sample.
Lesson 5 Exam
Question 21
__________ includes a failure on the part of a prospective respondent to take part in the survey, premature termination of the interview, or refusals to answer specific questions on the questionnaire.
a) Nonresponse
b) Cheating
c) Misunderstanding
d) Attention loss
Question 22
You should obtain a listing of the population after:
a) defining the relevant population.
b) accessing the population.
c) designing the sample plan.
d) drawing the sample.
Question 23
Sampling error is caused by two factors; one of them is the:
a) size of the population.
b) method of the sample unit definition.
c) method of sample selection.
d) method of population selection.
Question 24
Which of the following is NOT one of the axioms of sample size and accuracy?
Question 25
Which of the following is the BEST definition of variability?
Question 26
A sample that has been determined by using a cost basis approach would be when the manager has discussed:
Question 27
Which of the following is TRUE regarding probability samples?
Question 28
Sources of error that come from sources other than the sample selection method and sample size are referred to as:
a) serious mistakes.
b) nonsampling errors.
c) errors caused by competitors.
d) errors caused by clients.
Question 29
__________ errors occur whenever a data collection person willfully violates the data collection requirements set forth by the researcher.
a) Unintentional fieldworker
b) Intentional respondent
c) Unintentional respondent
d) Intentional fieldworker
Question 30
Sample accuracy refers to:
a) the extent to which the sample is validated.
b) the extent to which the sample statistics differ from the true population values the statistics represent.
c) the extent to which the population statistics differ from the representativeness of the sample.
d) a statistical concept that can be assessed only theoretically.
Question 31
What three factors are needed to calculate sample size?
Question 32
Which of the following is a general type of nonsampling error?
a) Fieldworker error
b) Clerical error
c) Forecast error
d) Continuity error
Question 33
Which of the following is the theory that allows us to say that if we conducted a survey 1,000 times, and we were to plot the answers to our survey, the plot would appear as a normal curve?
a) The central limit theorem
b) The normal curve theory
c) The normal limit theorem
d) The confidence interval theorem
Question 34
Which of the following samples have been determined by using the statistical analysis approach?
Question 35
The sample size determines:
a) representativeness.
b) accuracy.
c) representativeness and accuracy.
d) the population statistic value.
Question 36
When all other factors are held constant, as we increase the level of accuracy, the sample size and the cost of a marketing research survey are best characterized by which of the following?
Question 37
__________ is defined as all errors in a survey except those attributable to the sample plan and sample size.
a) Transcriptional error
b) Sampling risk
c) Continuity error
d) Nonsampling error
Question 38
A sample unit could be a:
Question 39
Ninety-five percent of the observations under the normal curve fall within __________ times the sample error.
a) ±1.64
b) ±1.96
c) ±2.58
d) ±95
Question 40
Level of confidence in sample size formulae is normally set at:
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