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4.2 Each of 9 people going on a diet was weighed before given a Very-low-calorie diet (VLCD) treatment and again after having been given (VLCD) treatment for 12 weeks.

4.2 Each of 9 people going on a diet was weighed before given a Very-low-calorie diet (VLCD) treatment and again after having been given (VLCD) treatment for 12 weeks.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter4: Equations Of Linear Functions
Section4.5: Correlation And Causation
Problem 2CYU
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4.2 Each of 9 people going on a diet was weighed before given a Very-low-calorie diet (VLCD) treatment and again after having been given (VLCD) treatment for 12 weeks. Table gives B (before) and A (after) treatment data for obese female patients in a weight- loss program. Weights (kg) of Obese Women Before and After 12-Week VLCD Treatment 105.4 100.4 81.7 77.7 | A: 117.3 111.4 98.6 104.3 89.5 78.2 B: 83.3 85.9 75.8 82.9 82.3 62.7 69.0 63.9 a) Test at 5% level of significance, whether the treatment is effective in causing weight reduction in these people. Assuming the weights before and after are normally distributed. b) Calculate a 95% confidence interval for the mean difference (u,)
Transcribed Image Text:4.2 Each of 9 people going on a diet was weighed before given a Very-low-calorie diet (VLCD) treatment and again after having been given (VLCD) treatment for 12 weeks. Table gives B (before) and A (after) treatment data for obese female patients in a weight- loss program. Weights (kg) of Obese Women Before and After 12-Week VLCD Treatment 105.4 100.4 81.7 77.7 | A: 117.3 111.4 98.6 104.3 89.5 78.2 B: 83.3 85.9 75.8 82.9 82.3 62.7 69.0 63.9 a) Test at 5% level of significance, whether the treatment is effective in causing weight reduction in these people. Assuming the weights before and after are normally distributed. b) Calculate a 95% confidence interval for the mean difference (u,)
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