Question: 2. [4.5 points] A weight management program assigned 300 overweight and obese women of child-bearing age to either an exercise-based intervention or a control condition.

2. [4.5 points]

A weight management program assigned 300 overweight and obese women of child-bearing age to either an exercise-based intervention or a control condition. The women were followed over a period of time, and were measured after 3 months. The results are displayed in the table below:

	Obese	Not obese
Control	95	55
Intervention	80	70

2a.[1 points]

Calculate the risk ratioof obesity associated with being in the control group.

Interpret the results.

2a. ANSWER:

2b. [2 points]

Calculate the odds ratio and the corresponding 95% confidence interval associated with obesity in the control group.

Interpret both the results (odds ratio and 95% confidence interval) in plain, non-statistical language for a person who has not had a statistics course

2b. ANSWER:

2c) [1.5 points]

Assume that the 95% CI that you computed in the above question contains one.

Your colleague looks at the results and is disappointed. He/she/ states "I really thought that this intervention would be effective. Our study just showed that the odds of obesity are the same in the control and intervention groups. How disappointing."

Is your colleague correct? Why or why not? Explain briefly how you would respond to these statements.

2c. ANSWER:

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