18 Jun The Module 06 Homework
The Module 06 Homework assignment covers Section 9.1 through 9.3.
For the Module 06 Homework, please download the Microsoft Word document using the link below and follow the directions included in the assignment.
Module 06 Homework assignment
Module 6 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 beforethe headache is cured for patients who use the medicine and another group of patients who use aplacebo drug.Please explain your decision.
Solution:
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 inpatients before and after drug treatment. The data consist of before and after intensities for eachpatient.
Please explain your decision.
Solution:
Instructor Comments:
3. In a random sample of 500 people aged 20-24, 22% were smokers. In a random sample of 450people aged 25-29, 14% were smokers. Test the claim that the proportion of smokers in the twoage groups is the same. Use a significance level of 0.01. (Show all steps of the hypothesis test and all calculations)
Solution:
Instructor Comments:
4. A researcher wishes to determine whether people with high blood pressure can reduce their blood pressure by following a particular diet. The sample data is shown below, where μ1 represents the mean blood pressure of the treatment group and μ2 represents the mean for the control group. Use a significance level of 0.01 andwhichever method you deem appropriate (p-value method, critical value method, or confidence interval method) to test the claim that the diet reduces the blood pressure. We do not know the values of the population standard deviations.Use Microsoft Excel or the following t-distribution table: http://www.itl.nist.gov/div898/handbook/eda/section3/eda3672.htm
Treatment Group
Control Group
n1
85
n2
75
189.1
203.7
s1
38.7
s2
39.2
Solution:
Instructor Comments:
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