QUESTION 10 Identify the population of the following example. In a poll of 50,000 randomly selected college students, 74% answered yes, when asked "Do you have a television set in your dorm room?" The 50,000 randomly selected students All students who have a television set in their dorm room The 74% who answered yes All college students who live in a dorm room QUESTION 11 Identify the sample in the following example. 100,000 randomly selected American adults were asked if they drank at least 48 oz. of water a day and only 45% said yes. All American adults who drink at least 48oz. of water a day All American adults The 45% who said yes The 100,000 randomly selected adults
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10) Fill in the blank with the corresponding sampling method: Simple Random Sampling, Systematic Random Sampling, Cluster Random Sampling, Stratified Random Sampling, Convenience Sampling. a) _________________________________________________ In an effort to measure the popularity of the television show Game of Thrones, Thomas asks 20 of his friends to rank their favorite TV shows. b) _________________________________________________ Every element of the population was assigned a three-digit number using a computer's random number generator. The elements that were assigned numbers between 000-099 were selected for the sample. c) _________________________________________________ The sampling frame of high school students was divided by grades. The researcher selected a random sample of 50 students from within each grade. d) _________________________________________________ A researcher has a total population of 100 and the research requires a sample size of 12, so about 1 in every 8 elements of the population. The researcher first picks a random starting number, 5. The elements of his sample will be 5, 13, 21, 29, 37, 45, 53, 61, 69, 77, 85, and 93.
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A school has 5000 students. There are 1500 freshman, 1500 sophomores, 1000 juniors, and 1000 seniors. At 8:00 AM, all students are in class; there are 200 classes that each have 25 students. The administration wants to give a survey asking the students about their favorite classes. They wish to poll 100 students. They select 4 of the 8:00 AM classes at random. All students in the selected classes are given the survey. What sampling method was used? convenience systematic cluster stratified simple random sample
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