When using a quota sample, interviewers typically underselect the
a. High income class.
b. Middle income class.
c. Low income class.
d. High and low income classes.
e. Interviewers do not underselect any class in a quota sample.
Question 2
Which of the following is FALSE?
a. Random nonsampling errors are more troublesome than nonrandom nonsampling errors.
b. Random nonsampling errors produce estimates that vary from the true value.
c. Random nonsampling errors tend to cancel each other out.
d. Nonrandom nonsampling errors bias the sample value away from the true value of the population parameter.
e. All of the above statements are true.
A passenger train crosses Stony Creek Bridge in the Rocky Mountains in 1878. Railroads were importan
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