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Multiple Choice Quiz
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1

Which term below refers to the process of selecting some elements from a population to represent that population?
A)segmentation
B)target marketing
C)sampling
D)cluster analysis
E)data mining
2

The term _____ refers to the variation in measures due to some known or unknown influence that causes the scores to skew in one direction or another?
A)precision
B)standard error
C)systematic variance
D)sampling error
E)random error
3

Sampling error refers to _____.
A)differences between the sample statistics and the population's parameters caused by random fluctuations inherent in the sampling process
B)bias caused by using a poor sampling frame
C)error created by systematic variance
D)differences between the results of a census and the population's parameters
E)error created by differences between those who respond to the survey and those who do not
4

Which term below refers to summary descriptors of variables of interest in the population?
A)Sample statistics
B)Population parameters
C)Systematic estimates
D)Standard errors
E)Standardized coefficients
5

The _____ is equal to the number of elements in the population belonging to the category of interest, divided by the total number of elements in the population.
A)standard deviation
B)standard error
C)population proportion of incidence
D)population variance
E)sample statistic
6

All of the following statements about sample size are true except _____.
A)the greater the variance within the population, the larger the sample should be
B)the greater the desired precision of the estimate, the larger the sample should be
C)the larger the error range, the larger the sample must be
D)the higher the level of confidence in the estimate, the larger the sample must be
E)the greater the number of subgroups of interest within a sample, the larger the sample must be
7

The _____ method of sampling includes elements from each of several mutually exclusive strata within a population.
A)simple random
B)systematic
C)stratified
D)cluster
E)double
8

Using the _____ sampling technique can result in a skewed sample if periodicity exists in the population.
A)simple random
B)systematic
C)stratified
D)cluster
E)double
9

Area sampling is a type of _____ sampling technique.
A)simple random
B)systematic
C)cluster
D)proportionate stratified
E)disproportionate stratified
10

Participants are selected by referral if the researcher uses the _____ sampling technique.
A)convenience
B)judgment
C)quota
D)snowball
E)area





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