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Pollsters regularly conduct opinion polls to NW determine the popularity rating of the current president. Suppose a poll is to be conducted
Question
Pollsters regularly conduct opinion polls to NW determine the popularity rating of the current president. Suppose a poll is to be conducted tomorrow in which 2,000 individuals will be asked whether the president is doing a good or bad job. The 2,000 individuals will be selected by random-digit telephone dialing and asked the question over the phone.
a. What is the relevant population?
b. What is the variable of interest? Is it quantitative or qualitative?
c. What is the sample?
d. What is the inference of interest to the pollster?
e. What method of data collection is employed?
f. How likely is the sample to be representative?
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Mathematics
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2021-09-05T14:16:22+00:00
2021-09-05T14:16:22+00:00 1 Answers
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Answer:
Step-by-step explanation:
(A) What is the relevant population?
The relevant population is all citizens of the country in which the president rules, who have a telephone line.
(B) What is the variable of interest? Is it quantitative or qualitative?
The variable of interest is how well the president is performing.
The variable is quantitative because it seeks to determine how well the president is performing, because there’ll always be good work and bad work so the poll is to find out the rate of good work or bad work done by the president.
(C) What is the sample?
The sample is the 2,000 people whose numbers will be dialed or who will be selected to partake in the interview.
(D) What is the inference of interest to the pollster?
The inference of interest is the opinion of the citizens concerning the performance of the president.
(E) What method of data collection is employed?
The method of data collection employed is Randomized Telephone Interview
(F) How likely is the sample to be representative?
The sample is very likely to be representative. This is because of the random selection of subjects for the interview.