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For each of the following hypothesen test questions 8 through 10 answ.pdf
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For each of the following hypothesen test questions 8 through 10 answer the following: a. State what it is you are testing: mean, variance or proportion, difference of means, differenec of proportions, or lincar carrelation. b. Determine of this is a left-tailed, right-hailed or ho-tailed test c. State whether you would we a f-fest, a z-fest, F-test, a 2-feat, of 2sanple wersion of these, or an ANOVA teat. DO NOT DO A COMPLETE HYPOTHESIS TEST FOR ANY OF THESE AT THIS POINT 8. A rescarcher tries four different approaches for having patients lese weight. He records the weight lest by cach puticnt. Is there a significant difference in the aversge weight lost between each method? WEIGHT LOST BY EACH PATIENT IN A SPECIFIC APPROACH (in pounds) a. b. c. 9. A Psychology professor wonders if he can teach students a better way to take notes, He has students take lecture notes for the first part of the quarter. He grades their tests on this material. He then spends several days teaching the students a new technique for taking lecture notes. These students take lecture notes for the second part of the quarter. The professor grades the students' tests on the second potion of the class material. He uses the exam seores to test his claim that his method of note-taking significantly improves exam scores. a. b. c. 10. In a sample of 280 Americans, 65% wished that they were rich. In a sample of 190 Europeans 47% wished that they were rich. Is there a significant difference?.
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For each of the following hypothesen test questions 8 through 10 answ.pdf
- For each of the following hypothesen test questions 8 through 10 answer the following: a. State what it is you are testing: mean, variance or proportion, difference of means, differenec of proportions, or lincar carrelation. b. Determine of this is a left-tailed, right-hailed or ho-tailed test c. State whether you would we a f-fest, a z-fest, F-test, a 2-feat, of 2sanple wersion of these, or an ANOVA teat. DO NOT DO A COMPLETE HYPOTHESIS TEST FOR ANY OF THESE AT THIS POINT 8. A rescarcher tries four different approaches for having patients lese weight. He records the weight lest by cach puticnt. Is there a significant difference in the aversge weight lost between each method? WEIGHT LOST BY EACH PATIENT IN A SPECIFIC APPROACH (in pounds) a. b. c. 9. A Psychology professor wonders if he can teach students a better way to take notes, He has students take lecture notes for the first part of the quarter. He grades their tests on this material. He then spends several days teaching the students a new technique for taking lecture notes. These students take lecture notes for the second part of the quarter. The professor grades the students' tests on the second potion of the class material. He uses the exam seores to test his claim that his method of note-taking significantly improves exam scores. a. b. c. 10. In a sample of 280 Americans, 65% wished that they were rich. In a sample of 190 Europeans 47% wished that they were rich. Is there a significant difference?