Florida Atlantic University STA STA 2023 In what follows use any of the following tests/procedures: Regression, multiple regression, confidence intervals, one sided Ttest or two sided Ttest.... Share Question

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Question 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 Wages data. SETUP: For the subjects in this study is it reasonable to claim that female wages are below 8 dollars per hour? Given the data your job is to help answer this question. https://www.limes.one/Content/DataFiles/Wages.txt I. What test/procedure did you perform? (6.66 points) a. One sided T-test b. Two sided T-test c. Regression d. Confidence interval II. Statistical interpretation? (6.66 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? (6.66 points) a. Yes, this was a reasonable claim. b. No, we cannot confirm that the claim was reasonable. 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: Scientists speculate that people with larger heads (circumference) have larger brains (volume) as well. Given the data your job is to confirm or disprove this assertion. https://www.limes.one/Content/DataFiles/Brains.txt I. What test/procedure did you perform? (6.66 points) a. One sided T-test b. Two sided T-test c. Regression d. Confidence interval II. Statistical interpretation? (6.66 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? (6.66 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: Some people claim that Man chest size is on average larger than the Hip size. Given the data your job is to confirm or disprove this claim. https://www.limes.one/Content/DataFiles/Man_Body.txt I. What test/procedure did you perform? (6.66 points) a. One sided T-test b. Two sided T-test c. Regression d. Confidence interval II. Statistical interpretation? (6.66 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? (6.66 points) a. Yes, this is a reasonable belief. b. No, we cannot confirm that this is a reasonable belief. Open Cars04 data. SETUP: Use the car weight data and construct the appropriate histogram (use bins of size 200, starting with 1800). Answer the questions: https://www.limes.one/Content/DataFiles/cars04.txt I. The chart you created resembles? (5.00 points) a. Bell shape b. Double-Bell shape c. Skewed shape II. Which bin has the highest frequency? (5.00 points) a. 400 - 600 b. 600 - 800 c. 800 - 1000 d. 1000 - 1200 e. None of these III. How many cars are heavier than 4000 pounds (5.00 points) a. 19 b. 20 c. 21 IV. For this data which of the following is true? (5.00 points) a. StDev < Median < Average b. Average < StDev < Median c. Median < Average < StDev d. StDev < Average < Median A random experiment was conducted where Person A rolled two dice and recorded the product of the two dice. (Example: if "4" and "3" came up, he recorded '12" since 3*4 = 12). Person B just rolled one die, and recorded the number. Answer the questions (either by direct computation or using simulations; use 10000 long columns). I) What is the probability that Person A observes number "7"? (6.66 points) a. 1/6 b. 1/12 c. 1/36 d. Zero II). What is the probability that person B obtains the number "5" or "6"? (6.66 points) a. About 13% b. About 18% c. About 22% d. About 32% III) Which of the two persons will more likely to obtain the number "6"? (6.66 points) a. Person A b. Person B c. Both persons have very similar probability of obtaining "5" d. Not possible to determine [Show More]

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