Directions: Use the information in the scenarios to complete the…
Question Answered step-by-step Directions: Use the information in the scenarios to complete the… Directions: Use the information in the scenarios to complete the hypothesis testing process. Your final answer for each scenario should include all four parts of Step 6. Scenario 1A researcher wanted to examine whether there were health benefits to daily consumption of vitamin C. A randomly selected sample of 94 adults was asked to consume a daily dose of vitamin C. The participants’ overall health was assessed before the vitamin C intervention (MPreIntervention = 43.57) and three months after the intervention began (MPostIntervention = 48.35). The standard deviation of the difference between the two means was sD = 3.28. Does daily consumption of vitamin C increase people’s overall health? Use a = .05. If appropriate, calculate a confidence interval and provide information about the size of the effect.Scenario 2Dr. Patel wanted to assess whether the use of extrinsic rewards increased the number of books that middle school students read. She selected a random sample of 105 middle school students. Then she calculated that, on average, the students in the sample read 5.87 books per month. Next, she implemented a month-long intervention: for each book a student read, the student received a $5 gift card. Finally, she calculated the average number of books the students read during the intervention: 8.43. The standard deviation of the difference between the two means was sD = 2.54. Did the extrinsic reward increase the number of books students read? Use a = .05. If appropriate, calculate a confidence interval and provide information about the size of the effect. Math Statistics and Probability PSY 240 Share QuestionEmailCopy link Comments (0)
