EWitte_Module04_Week4Assignment_103016.docx

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Name:_____Elizabeth Witte_________________________________ Module 4 Homework Assignment 1. Determine whether the samples are independent or dependent. The effectiveness of a new headache medicine is tested by measuring the amount of time before the headache is cured for patients who use the medicine and another group of patients who use a placebo drug. Explain. Solution: The samples are independent because the information from the two samples are not paired. One is using a medicine and one is using the placebo drug. Instructor Comments: 2. Determine whether the samples are independent or dependent. The effectiveness of a headache medicine is tested by measuring the intensity of a headache in patients before and after drug treatment. The data consist of before and after intensities for each patient. Explain. Solution: The samples are dependent because they are using information gathered for the effectiveness of a headache medicine in the same patients before and after treatment. The data is linked.
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