Question: Chapter 10: 10.4: CI - Hypothesis Test for Matched Pairs Samples Homework Score: 10.38/15 Answered: 3/5 Question 4 Doctors developed an intensive intervention program for

Chapter 10: 10.4: CI - Hypothesis Test for Matched Pairs Samples Homework Score: 10.38/15 Answered: 3/5 Question 4 Doctors developed an intensive intervention program for obese patients with heart disease. Subjects with a BMI of 30 kg/m or more, with heart disease were assigned to a three-month lifestyle change of diet and exercise. Patients' Left Ventricle Ejection Fraction (LVEF) are measured before and after intervention. A normal heart's ejection fraction may be between 50 and 70 percent, higher numbers indicate a healthier heart. Assume LVEF's are normally distributed. Before After 48 68 45 63 49 65 47 56 52 69 48 56 45 53 Find the 95% confidence interval for the mean of the differences. Round answers to at least 4 decimal places. Hd Did the intensive intervention program significantly increase the LVEF measurements? |? v

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