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In what follows use any of the following tests/procedures: Regression, multiple regression, confidence intervals, one sided T-test or two sided T-test. All the procedures should
In what follows use any of the following tests/procedures: Regression, multiple regression, confidence intervals, one sided T-test or two sided T-test. All the procedures should be done with 5% P-value or 95% confidence interval. Some answers are approximated, choose the most appropriate answer. Open Cars04 data. SETUP: It is believed that the longer the car the lower mileage the per gallon (MPG). Given the data your job is to confirm or disprove this belief. http://www.limes.one/Content/DataFiles/cars04.txt I. What test/procedure did you perform? (7.69 points) a. One sided T-test b. Two sided T-test c. Regression d. Confidence interval II. Statistical interpretation? (7.69 points) a. Since P-value is small we are confident that the slope is not zero. b. Since P-value is small we are confident that the averages are different. c. Since P-value is too large the test is inconclusive. d. None of these. III. Conclusion? (7.69 points) a. Yes, we can confirm the assertion. b. No, we cannot confirm the assertion. In what follows use any of the following tests/procedures: Regression, multiple regression, confidence intervals, one sided T-test or two sided T-test. All the procedures should be done with 5% P-value or 95% confidence interval.Some answers are approximated, choose the most appropriate answer. Open Brains data. SETUP: Some people believe that the first born children are more intelligent. Given the data your job is to confirm or disprove this assertion. http://www.limes.one/Content/DataFiles/Brains.txt I. What test/procedure did you perform? (7.69 points) a. One sided T-test b. Two sided T-test c. Regression d. Confidence interval II. Statistical interpretation? (7.69 points) a. Since P-value is small we are confident that the slope is not zero. b. Since P-value is small we are confident that the averages are different. c. Since P-value is too large the test is inconclusive. d. None of these. III. Conclusion? (7.69 points) a. Yes, we can confirm the assertion. b. No, we cannot confirm the assertion. In what follows use any of the following tests/procedures: Regression, multiple regression, confidence intervals, one sided T-test or two sided T-test. All the procedures should be done with 5% P-value or 95% confidence interval.Some answers are approximated, choose the most appropriate answer. Open Man_Body data. SETUP: It is believed that on average men are taller than 70 inches. Given the data your job is to confirm or disprove this assertion. http://www.limes.one/Content/DataFiles/Man_Body.txt I. What test/procedure did you perform? (7.69 points) a. One sided T-test b. Two sided T-test c. Regression d. Confidence interval II. Statistical interpretation? (7.69 points) a. Since P-value is small we are confident that the slope is not zero. b. Since P-value is small we are confident that the averages are different. c. Since P-value is too large the test is inconclusive. d. None of these. III. Conclusion? (7.69 points) a. Yes, we can confirm the assertion. b. No, we cannot confirm the assertion I. Which data groups have the outliers? (7.69 points) a. Grade 12 b. Grade 10 c. None of these II. Which group has the smallest median? (7.69 points) a. Grade 10 b. Grade 11 c. Grade 12 III. Which group has no median? (7.69 points) a. Grade 10 b. Grade 11 c. None of these IV. Which group is skewed to the right? (7.69 points) a. Grade 10 b. Grade 12 c. None of these A random experiment was conducted where Person A tossed five coins and recorded the number of \"heads\". Person B rolled three dice and recorded the smaller number out of the three dice. Answer the questions (either by direct computation or using simulations; use 10000 long columns). I) Which of the two persons (A or B) is more likely to get the number \"1\"? (3.33 points) a. Person A b. Person B c. Both Persons have very similar probability of obtaining 1 d. Not possible to determine II) What is the probability that person B obtains the number \"5\" or \"6\"? (3.33 points) a. About 3% b. About 8% c. About 10% d. About 15%% III) Which of the persons has a higher probability of getting the number \"3\" or larger? (3.33 points) a. Person A b. Person B c. Not possible to determine
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