about Censuses, Surveys, Polls, and Studies

User Generated

wraalpunat0902

Mathematics

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:

Unformatted Attachment Preview

Chapter 14 – Final Chapter Exam Name: ____________________ Part I: Vocabulary on Moodle Part II: Starts here with section A (10 pts) 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: 1.) _____________________________________________ 2.) _____________________________________________ 3.) _____________________________________________ 4.) _____________________________________________ 5.) _____________________________________________ 6.) _____________________________________________ The textbook author says (p. 424), “Ideally the two [target population and sampling frame] should be the same, but sometimes they’re not…” State, using the East Essex example, (a) which individuals in the population will “have zero chance of being selected for the sample” AND (b) describe why. (4 points) 7.) (a)___________________________________________________________ (b)___________________________________________________________ ______________________________________________________________ ______________________________________________________________ Section B. (50 pts) You will find below several articles claiming statistical results that have the potential to influence public policy issues. First, you will need to open the media versions and skim the contents to find one that really interests you. Step 1 (10 points): Once you’ve chosen your topic, read the newspaper article well and then state what the answers are to the following criteria: What type of method was used to collect data? ______ What was the stated purpose (the research question) of this study? _____________ What population was investigated? _______________________________________ What was the population size? __________________________________________ What were the results and conclusion? ___________________________________ Step 2: Analyzing the Newspaper Article (15 points): Answer this question for Step 2: To what extent does the newspaper article give you enough information to assess the external validity of the study? Use at least five criteria from the list below to analyze if, where and how the newspaper article either does or doesn’t give enough information for someone to draw a conclusion about the external validity. (You should have at least 5 supported examples worth 3 points each.) Research Criteria: sample frame sampling proportion (n/N) clinical trial environment treatment/control groups parameters sample size randomness any reported or suspected bias confounding variables placebo effect blind or double-blind studies response rate Remember that external validity is the confidence that the findings of the study can be generalized beyond the present study. Do we have that confidence based on what the newspaper describes? For example, can the results of this study, as reported in the media article, describe or predict behavior for a population other than the one that was reported on? Step 3: Analyzing the Professional Journal Article (15 points) In addition to the newspaper article, you have access to a copy of the original conference or journal presentation that the journalist(s) read in order to write their media article. Choose the original research that matches the newspaper article you read and apply the same process and same research criteria as in step 2 (Once again, you should use at least 5 criteria worth 3 points each to answer the question below.) Answer this question for Step 3: To what extent does the original research give you enough information to assess the external validity of the study? Step 4: Compare the qualities of one version over the other (10 points). Though not always the case, media articles on clinical trials sometimes proclaim external validity on very little evidence by hyping the findings over the research criteria; perhaps the drama in the ambiguity helps market the newspaper or other popular medium being used. In a final paragraph, you should point out • if one of the two reports on this research topic presents the better argument for external validity, • if both do, or • if neither one does, pulling from and supporting your reasoning by using the research criteria above.
Purchase answer to see full attachment
User generated content is uploaded by users for the purposes of learning and should be used following Studypool's honor code & terms of service.

Explanation & Answer

please let me know if you need more information im ready to add up. thankyou

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...


Anonymous
Great! Studypool always delivers quality work.

Studypool
4.7
Trustpilot
4.5
Sitejabber
4.4

Related Tags