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The paper "Supervised Exercise Versus Non-Supervised Exercise for Reducing Weight in Obese Adults† describes an experiment in which participants were randomly assigned either to a supervised exercise program or a control group. Those in the control group were told that they should take measures to lose weight. Those in the supervised exercise group were told they should take measures to lose weight as well, but they also participated in regular supervised exercise sessions. Weight loss (in kilograms) at the end of four months was recorded. Data consistent with summary quantities given in the paper are shown in the accompanying table. ***Find the test statistic and P-value

The paper "Supervised Exercise Versus Non-Supervised Exercise for Reducing Weight in Obese Adults† describes an experiment in which participants were randomly assigned either to a supervised exercise program or a control group. Those in the control group were told that they should take measures to lose weight. Those in the supervised exercise group were told they should take measures to lose weight as well, but they also participated in regular supervised exercise sessions. Weight loss (in kilograms) at the end of four months was recorded. Data consistent with summary quantities given in the paper are shown in the accompanying table. ***Find the test statistic and P-value

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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The paper "Supervised Exercise Versus Non-Supervised Exercise for Reducing Weight in Obese Adults† describes an experiment in which participants were randomly assigned either to a supervised exercise program or a control group. Those in the control group were told that they should take measures to lose weight. Those in the supervised exercise group were told they should take measures to lose weight as well, but they also participated in regular supervised exercise sessions. Weight loss (in kilograms) at the end of four months was recorded. Data consistent with summary quantities given in the paper are shown in the accompanying table.

***Find the test statistic and P-value

The paper "Supervised Exercise Versus Non-Supervised Exercise for Reducing Weight in Obese Adultst describes an experiment in which participants were randomly assigned either to a supervised exercise program or a control group. Those in the control group were told that they should take measures to lose weight. Those in the supervised exercise group were told they should take measures to lose weight as well, but they also participated in regular supervised exercise sessions. Weight loss (in kilograms) at the end of four months was recorded. Data consistent with summary quantities given in the paper are shown in the accompanying table. Experimental Group Group Size Weight Loss (in kg) 1.4 4.8 4.4 9.4 2.3 10.8 9.7 2.4 5.2 10.1 Supervised Exercise 17 -3.9 13.2 3.5 2.7 11.3 9.5 5.4 6.6 7.9 2.1 -2.3 1.7 5.2 1.0 3.9 4.7 -0.9 Control 17 1.1 2.3 2.4 0.9 1.1 1.1 5.2 n USE SALT Do these data provide evidence that the supervised exercise treatment results in a significantly greater mean weight loss than the treatment that just involves advising people to lose weight? (Test the relevant hypotheses using a 0.05 level of significance. Use u, for the supervised exercise group and H, for the control group.) State the appropriate null and alternative hypotheses. O Ho: H1- Mz = 0 Ha: H1 - H2 < 0 O Ho: H1- H2> 0 Ha: H1 - Mz<O O Ho: H1 - H2 = 0 Ha: H1 - H2 > 0
Transcribed Image Text:The paper "Supervised Exercise Versus Non-Supervised Exercise for Reducing Weight in Obese Adultst describes an experiment in which participants were randomly assigned either to a supervised exercise program or a control group. Those in the control group were told that they should take measures to lose weight. Those in the supervised exercise group were told they should take measures to lose weight as well, but they also participated in regular supervised exercise sessions. Weight loss (in kilograms) at the end of four months was recorded. Data consistent with summary quantities given in the paper are shown in the accompanying table. Experimental Group Group Size Weight Loss (in kg) 1.4 4.8 4.4 9.4 2.3 10.8 9.7 2.4 5.2 10.1 Supervised Exercise 17 -3.9 13.2 3.5 2.7 11.3 9.5 5.4 6.6 7.9 2.1 -2.3 1.7 5.2 1.0 3.9 4.7 -0.9 Control 17 1.1 2.3 2.4 0.9 1.1 1.1 5.2 n USE SALT Do these data provide evidence that the supervised exercise treatment results in a significantly greater mean weight loss than the treatment that just involves advising people to lose weight? (Test the relevant hypotheses using a 0.05 level of significance. Use u, for the supervised exercise group and H, for the control group.) State the appropriate null and alternative hypotheses. O Ho: H1- Mz = 0 Ha: H1 - H2 < 0 O Ho: H1- H2> 0 Ha: H1 - Mz<O O Ho: H1 - H2 = 0 Ha: H1 - H2 > 0
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