The International Olympic Committee is picking 2 finalist cities from 6 semifinalist cities. What is the number of elements in the sample space for this experiment
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A: It is given thatFor Brown:Favourable cases, x = 172Sample size, n = 400
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The International Olympic Committee is picking 2 finalist cities from 6 semifinalist cities. What is the number of elements in the
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- How many degrees of freedom does your sample contain?A university has 30,000 undergraduate and 10,000 graduate students. A survey of student opinion concerning health care benefits for domestic partners of students selects 300 of the 30,000 undergraduate students at random and then separately selects 100 of the 10,000 graduate students at random. The 400 students chosen make up the sample. Is the sample design described above a simple random sample (SRS)? Explain why or why not.A political scientist surveys 40 of the current 435 voting representatives in congress. What is the value of n? n= sample size
- Nationally, 61% of American own American cars, 26% of Americans own Asian cars, and the remaing Americans own non-Asian foreign cars. A survey of 205 people in California finds that 54% own American cars, 31% own Asian cars, and the remaining own non-Asian foreign cars. When testing (at the 10% level of significance) whether the proportions in California are the same as the national proportions, what is the test statistic (please round your answer to 3 decimal places)On election day, a local TV news organization stayed at three polling locations in Fairfield county and asked voters whether they voted for candidate A in the election for the US Senate seat. The ’yes’ responses they got were 520 out of 945, 475 out of 865, and 485 out of 980 in the three different locations. They aggregated the sample data into 1480 out of 2790 and after the 8pm close of the election reported their sample results to viewers. a) Go through the steps of a significance test to determine whether or not candidate A won the election. b) Based on the above sample data, at 8:01pm the news organization reported their estimate of the percentage of votes candidate A received and the margin of error of their poll. Calculate these numbers. They then aired their prediction that candidate A won the election. Discuss any concerns you have with their decision to report their prediction.A coach is interested in how many slam dunks the average college freshman at his university can do. Ten volunteers from the senior class step forward. After observing their performance, the coach concluded that college seniors can do an average of 10 slam dunks in a row without missing. what is the sample? what is the population?
- A small business owner randomly selects 10 employee time cards from each of the 3 shifts. Determine the sampling method. Simple Random Cluster 00000 Convenience Systematic StratifiedAn officer was tasked to determine the total number of laboratory rooms in need of repair. By drawing lots, ten buildings were randomly selected and all laboratory rooms in each selected building were inspected. What sampling method was used in selecting the building? (Choices: simple random; stratified random; systematic; cluster) What sampling method was used in selecting the laboratory rooms? (Choices: simple random; stratified random; systematic; cluster)The local newspaper selected 1500 residents of Claremore residents to poll about a proposed tax increase. What is the population that they are studying? What is the sample involved in the study? If they chose to divide the city by elementary school attendance area and then contacted 7 people in each area asking whether they support the tax increase, what method of sampling would they be using? If they placed a link on their website that interested parties could report whether they support the tax increase, what method of sampling would they be using? Let’s assume that on that web page, there were 437 who supported the tax increase and 354 who did not. What is the sample proportion?