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- TÜRKÇE İNGİLİZCE RUSÇA Which of the following options is the% coefficient of variation for the (2,3,4,5,6,7,8) series? Please choose one: a. 63% b. 90% С. 45% D. 26% to. 43% 2021/4/28 12:05 28.04.2021Meteorology is the study of stars, the moon, and other celestial bodies. O True O False e here to search F8 F9 F10 F5 F6 F7 F2 F3 F4 % 5 6 7 2 3 %# Mþoes increasing time spent in the Bible increase overall happiness? A study was performed on Christians who had not been reading the Bible, where 20 subjects were paired based on current happiness levels. Ten subjects spent 30 minutes a day in the Bible, while the other ten spent an hour. After two weeks, overall happiness was recorded. If we want to determine the difference in the two groups, what test statistic would we use? Select one: O a. totest - t(19) O b.x-test x19 c. tp-test - N(0,1) Od tp-test t(18) O e. None of the above O f.tgtest -N(0,1) O g. Zp-test - t(39) O h. t-test -N(0,1) O i. totest - O j.x2-test N(0,1) t(9) ave & Continue
- The rating is the percentage of households with TV sets that watched the program. Top Rated TV Programs: 2007-2008 Top Rated TV Programs: 2012-2013 Program Rating Program Rating Survivor: China 9.0 How I Met Your Mother 3.7 Without a Trace 8.8 Family Guy 3.6 The Moment of Truth 8.8 Once Upon a Time 3.6 Two and a Half Men 8.5 Survivor: Philippines 3.5 60 Minutes 8.4 X-Factor Wednesday 3.5 Criminal Minds 8.2 NCIS: LA 3.4 7.9 American Idol - Tuesday American Idol - Wednesday 16.1 15.9 NBC Sunday Night Football Big Bang Theory 6.2 Send data Excel Part 1 of 2 (a) Find the population standard deviation of the ratings for 2007-2008. Round the answer to at least two decimal places. The population standard deviation of the ratings for 2007-2008 is %. Part 2 of 2 (b) Find the population standard deviation of the ratings for 2012-2013. Round the answer to at least two decimal places. Espar 昆 MInk Replay Replay 3. A survey taker randomly approached 344 individuals in the mall, hoping to ask some survey questions. Only 206 people agreed to participate. They were asked (1) their sex; (2) whether or not they exercise. The results are below. Men Women Do not exercise 16, 31.4% Do not exercise 48, 31.0% Exercise 35, 686% Exerci se" 107 690% What proportion of the men exercise? -68.6% What proportion of the women exercise? -69.0% Do the two variables (sex and whether or not someone exercises) seem to be associated? Explain. What proportion of those who exercise were women? What proportion of those who exercise were men? Do your answers d. and e. make you rethink your response to c.? Explain. Is it misleading that the two pies are the same size? Explain. D Focus2020/202 14% G is defined as this fair spinner landing on a multiple of 4. H is defined as the spinner landing on 11 or higher. What is P(G OR H)? Give your answer in decimal form. Type your answer....
- What percentage of bookcases in the example are large? Large constitute: ______ %needed help calculating B← The results of a survey on the belief that stem cell research has merit are shown in the table below. % X 1524 SEP 28 95% CI (0.7052, 0.7434) Here, X denotes the number who believed that stem cell research has merit. Complete parts a and b below. N 2104 a. Explain how to interpret "Sample p" and "95% CI" in this table. The "Sample p" is the proportion of all respondents in the sample who believe stem cell research has merit, 1524/2104 0.72. The "95% CI" is the 95% confidence interval and it means that we can be 95% confident that the interval 0.7052 to 0.7434 contains the population proportion. (Round to four decimal places as needed.) b. What is the 95% margin of error associated with the poll? The 95% margin of error is. (Round to four decimal places as needed.) F5 6 Sample p 0.724335 tv F6 Clear all & F7 Check answer Ndi 8 DIL 9 elp students like you learn core concep for 10 level of significance and two (0-65) (0-35) 1000 Chegg Study F9 A O
- The director of library services at a college did a survey of types of books (by subject) in the circulation library. Then she used library records to take a random sample of 888 books checked out last term and classified the books in the sample by subject. The results are shown below. Subject Area Business Humanities. Natural Science Social Science All other subjects USE SALT Percent of Books on Subject in Circulation Library on This Subject 32% 25% 20% 15% 8% Using a 5% level of significance, test the claim that the subject distribution of books in the library fits the distribution of books checked out by students. (a) What is the level of significance? State the null and alternate hypotheses. Ho: The distributions are different. H₁: The distributions are different. H: The distributions are different. H: The distributions are the same. H₁: The distributions are the same. Ho: The distributions are the same. Ho: The distributions are the same. Ho: The distributions are different.…groups by cholesterol levels, high and low. In 1950 there were 1120 people in the low cholesterol group, 20 of whom were found to have had a previous heart attack. Over the next 8 years (until the end of 1958) 66 more (new) heart attacks occurred in this group. In 1950 among those in the high cholesterol group (n=1127) there were 27 that were shown to have had a previous heart attack. Over the next 8 years, (until the end of 1958) 135 new heart attacks occurred to members of this group. What was the prevalence of heart attacks in the low cholesterol group in 1950? What was the prevalence of heart attacks in the high cholesterol group in 1950? What was the incidence rate of heart attacks in the low cholesterol group from 1951 until the end of 1958?