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Question 8 1 pts The following contingency table shows the number of people who are smokers vs. non-smokers and who have developed arthritis vs no
Question 8 1 pts The following contingency table shows the number of people who are smokers vs. non-smokers and who have developed arthritis vs no arthritis Developed arthritis Did not develop arthritis Smokers Non-Smokers 198 0 Determine the p-value for a hypothesis test (round your answer to 3 decimal places) 0 State whether you reject the null hypothesis or fail to reject the null hypothesis 0 Clearly state whether the data indicates the likelihood of developing arthritis depends on Whether a person smokes, or, if the data indicates the likelihood of developing arthritis does not depend on whether a person smokes O p = 0.972, fail to reject null, not dependent O p = 0.028, reject null, not dependent O p = 0.028, fail to reject null, dependent O p = 0.028, reject null, dependent Question 9 1 pts The table below shows data collected for the population of voting age (in millions) and the corresponding turnout in federal elections (in millions) Voting age population, x 158.4 169.9 178.6 185.8 193.7 Turnout in federal 58.9 67.6 65.0 elections, y 67.9 75.1 . Find the correlation coefficient (r) for this dataset. (round your answer to 3 decimal places) . Determine the best fit linear regression equation. (Round your answers to 3 decimal places) O r = 0.893, y = 0.380x - 0.391 O r= -0.893, y = 0.380x + 0.391 O r = 0.893, y = 0.391x - 0.380 O r = 0.217, y = 5.412x - 67.921Question 10 1 pts The table available below shows the costs per mile (in cents) for a sample of automobiles. At a = 0.05, can you conclude that at least one mean cost per mile is different from the others? Small sedan SUV4WD mm 59 62 Find the p-value Are the means statistically the same, or is at least one mean different from the others? 63 66 60 62 61 O p = 0.085, at least one mean different from the others 0 p = 0.915, at least one mean different from the others 0 p = 0.915, means are statististically the same O p = 0.085, means are statististically the same 66 72 62 62 63 50 56
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