Description
easy questions about Censuses, Surveys, Polls, and Studies.
Such as
Section A. I’d like you to reconsider this Village Questionnaire problem. Think carefully about the difference between target population and sampling frame, a distinction that is described in detail at the top of p. 424. (6 points)
“In order to get the opinions of residents of the village of Essex Junction, Vermont, the Village Office on Voting Standards sends a questionnaire to 1000 individuals randomly chosen from the list of all registered voters in the village. Of the 1000 questionnaires sent, 480 are returned.”
Your task is to identify 1) the target population, 2) the sampling frame, 3) the sample, 4) sample size, 5) the response size and 6) the response rate in this word problem. Think about it carefully, and then list them here:
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Explanation & Answer
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Section A
1. the target population is the total number of registered voters in the village of Essex Junction
2. sampling frame is the specific individuals in the Essex Junction to give out opinions=1000
3. the sample =1000
4. sample size = 1
5. response size = 520
6. response rate =520/1000= 0.52= 52%
7.) (a) non –registered voters will have zero chance of being selected
(b) they will not be selected because they fail to satisfy the first criterion of being in the voters
register and therefore will not get the questionnaires to give out their opinions.
Section B
Step 1
The methods used to collect data included assigning the group of men and women to a low-fat diet
or one of two variations o the Mediterranean diet: one with a lot of extra-virgin oil and the other with
lots of nuts. They also checked the people's actual consumption of olive oil and nuts with lab tests.
Purpose of the study was to investigate the Mediterranean diet:
Population size was more than 7000people
Results were that those people that utilized the diet reduced the risk of having a heart attack and
strokes and also reduced the risk of dying.
step 2
the newspaper article utilizes a sample size of considerable size ie, more than 7000 people. the
study also involved individuals who were randomly selected and a...