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Question: 8 ports a statistics st den at smaliberal arts...

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8 ports A statistics st den at ฮ smaliberal arts colege ho s cu ous about he eationship between he a moun o m e st ents ฮ his co ege spend on social network ng sites and her perform ance a school dec des o conduct a su vey Four research strategies or collecting data are described below. In each, name the sampling method proposed and any bias you might expect. Strategy 1: He obtains a ist of the 1500 students at the college He chooses a random number k between 1 and 15 and then samples that person and every kth person on the list He emails the survey to each of the people in the sample and asks them to complele it by nexd Friday. 1. What is the sampling method? OA. Convenience sampling O B. Systematic sampling O C. Simple random sampling D. Stratified sampling O E. Cluster sampling 2. What type of bias would you expect? (check all that apply) A. No bias in this survcy B. Response bias C Nonresponse bias D. Selacion bias Strategy 2: He gives out the survey onty to his friends, and makes sure cach one of them fils out the survey 3. What is the sampling method? oA. Stratifed sampling B. Simple random sampling o C. Convenience sampling D. Systematic sampl ing O E. Cluster sampling 4. What type of bias would you expect? (check al that apply) A. No bias in this survey B. Nonresponse bias C. Response bias D. Selecion bias Strategy 3: He randomly chooses 3 floors of the largest dorm on campus and distributes a paper survey to each resident on those floors. He places a box in the common room of the dorm to collect the compleled surveys. 5. What is the sampling method? A. Stratfied sampling B. Convenience sampling O C. Cluster samping D. Systematic sampling O E. Simple random sampling 6. What type of bias would you expect? (check al that apply) A Response bias B. Nonresponsc bias C. No bias in this survey D. Selecion bias 7. Which strategy will give him the most representafve sample of students at his college? o A. Strateay 1 ов.strategy 2 O C. Strategy 3

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