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##### Research Question for Parts 1 and 2: A health psychologist wants to study overall student health

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**Question**

I need help I don't understand any of this. Research Question for Parts 1 and 2: A health psychologist wants to study overall student health on a university campus. One measure he decides to take is that of minutes exercised per week. Assume that we know from previous studies that the population mean for minutes of exercise per week for college students is? = 100 with a standard deviation of? = 25.;The health psychologist in question is particularly interested in the myth of the ?Freshmen 15.? This myth claims that most freshmen gain weight during the first year of college, mostly due to bad eating habits and lack of exercise and sleep. He wonders if the Freshmen on his campus actually exercise less than the general population of college students. He randomly selects a sample of 50 Freshmen students and asks them how many minutes they exercise per week. The raw data collected by the health psychologist are in this module/week?s Data Set, entitled ?Data Set 5?.;Part 1: Confidence Interval;1. Open the Excel file entitled ?Data Set 5?. The file contains the following: a) raw data for the sample of 50 Freshmen, b) a results table for Part 1, c) Questions for Part 1, d) a results table for Part 2, and e) Questions for Part 2.;2. Construct a 95% Confidence Interval of the population mean of minutes exercised per week.;a. First, fill in cells with information given in the research question above (N and sigma). (4 pts);b. In the appropriate cell in the table, compute the sample mean using the raw data given in column A. (Use the AVERAGE function.) (4 pts);c. Determine the alpha level for this problem and type it in the appropriate cell. (4 pts);d. As seen in this module/week?s presentation, use the CONFIDENCE function to compute the 95% confidence interval in the appropriate cell in the table. (4 pts);e. Again as seen in the presentation, compute the lower and upper limits of the confidence interval in the appropriate cells.(4 pts);3. Answer all five questions beneath the first table. Type answers directly into the Excel file as indicated. (Questions = 3 points each for total of 15 pts.)

Paper#23109 | Written in 18-Jul-2015

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