HPHM 4336: Fundamentals of Epidemiology & Applied Biostatistics.

PROBLEM 1

A study of 320 patients admitted to the Mayo Clinic during the past year revealed that, on the average, a patient lived 15 miles from the Clinic. Based on this study, answer the following questions

• What is the sample in the study?
• What is the population?
• What is the variable of interest?
• What measurement scale or level of measurement was used?

PROBLEM 2

Drinking 5 cups of coffee has been observed to lead to weight loss. A preliminary study of 35 obese participants were all given 5 cups of coffee every day for 10 weeks to evaluate the effect coffee on weight change. download the dataset (dataset name WEIGHTLOSS) to address this question.

1. Copy and paste your output from SPSS here
2. Report the following values for weight loss at posttest (variable: WTPST)
3. Range
4. Mean
5. Variance
6. Standard deviation
7. Standard error of the mean
8. Draw a histogram to show the distribution for weight loss at posttest (variable: WTPST) and describe what type of skewness you observed. Copy and paste the graph from your SPSS output window.