Homework Help is Here – Start Your Trial Now!
Math
Statistics
In Exercise 7.25, we saw data from Everitt that showed that girls receiving cognitive behavior therapy gained weight over the course of that therapy. However, it is possible that they just gained weight because they got older. One way to control for this is to look at the amount of weight gained by the cognitive therapy group (n = 29) in contrast with the amount gained by girls in a Control group (n = 26), who received no therapy. The data on weight gain for the two groups is shown below. Control Cognitive Therapy -0.5 3.3 1.7 -9.1 -9.3 11.3 0.0 0.7 2.1 -5.4 -0.1 -1.4 12.3 -2.0 -1.0 -0.7 1.4 -0.3 - 10.6 -4.6 -3.5 - 10.2 - 12.2 14.9 -3.7 -6.7 3.5 17.1 -7.6 -0.8 11.6 2.8 2.4 -7.1 0.3 12.6 6.2 1.8 1.6 1.9 -0.2 3.7 11.7 3.9 -9.2 15.9 6.1 0.1 8.3 - 10.2 1.1 15.4 -4.0 -0.7 20.9 3.01 7.31 Mean -0.45 St Dev. 7.99 Variance 63.82 53.41 Run the appropriate test to compare the group means. What would you conclude?

In Exercise 7.25, we saw data from Everitt that showed that girls receiving cognitive behavior therapy gained weight over the course of that therapy. However, it is possible that they just gained weight because they got older. One way to control for this is to look at the amount of weight gained by the cognitive therapy group (n = 29) in contrast with the amount gained by girls in a Control group (n = 26), who received no therapy. The data on weight gain for the two groups is shown below. Control Cognitive Therapy -0.5 3.3 1.7 -9.1 -9.3 11.3 0.0 0.7 2.1 -5.4 -0.1 -1.4 12.3 -2.0 -1.0 -0.7 1.4 -0.3 - 10.6 -4.6 -3.5 - 10.2 - 12.2 14.9 -3.7 -6.7 3.5 17.1 -7.6 -0.8 11.6 2.8 2.4 -7.1 0.3 12.6 6.2 1.8 1.6 1.9 -0.2 3.7 11.7 3.9 -9.2 15.9 6.1 0.1 8.3 - 10.2 1.1 15.4 -4.0 -0.7 20.9 3.01 7.31 Mean -0.45 St Dev. 7.99 Variance 63.82 53.41 Run the appropriate test to compare the group means. What would you conclude?

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 2AGP
See similar textbooks
icon
Related questions
Topic Video
Question
In Exercise 7.25, we saw data from Everitt that showed that girls receiving cognitive behavior therapy gained weight over the course of that therapy. However, it is possible that they just gained weight because they got older. One way to control for this is to look at the amount of weight gained by the cognitive therapy group (n = 29) in contrast with the amount gained by girls in a Control group (n = 26), who received no therapy. The data on weight gain for the two groups is shown below. Control Cognitive Therapy -0.5 3.3 1.7 -9.1 -9.3 11.3 0.7 2.1 -5.4 0.0 -0.1 -1.4 12.3 -1.0 -0.7 1.4 -2.0 - 10.6 -3.5 -0.3 -3.7 - 10.2 - 12.2 -4.6 14.9 -6.7 3.5 -0.8 11.6 2.8 17.1 2.4 -7.1 0.3 -7.6 12.6 6.2 -0.2 1.8 1.6 1.9 3.7 11.7 3.9 -9.2 15.9 6.1 0.1 8.3 - 10.2 1.1 15.4 -4.0 -0.7 20.9 Мean -0.45 3.01 St Dev. 7.99 7.31 Variance 63.82 53.41 Run the appropriate test to compare the group means. What would you conclude?
Transcribed Image Text:In Exercise 7.25, we saw data from Everitt that showed that girls receiving cognitive behavior therapy gained weight over the course of that therapy. However, it is possible that they just gained weight because they got older. One way to control for this is to look at the amount of weight gained by the cognitive therapy group (n = 29) in contrast with the amount gained by girls in a Control group (n = 26), who received no therapy. The data on weight gain for the two groups is shown below. Control Cognitive Therapy -0.5 3.3 1.7 -9.1 -9.3 11.3 0.7 2.1 -5.4 0.0 -0.1 -1.4 12.3 -1.0 -0.7 1.4 -2.0 - 10.6 -3.5 -0.3 -3.7 - 10.2 - 12.2 -4.6 14.9 -6.7 3.5 -0.8 11.6 2.8 17.1 2.4 -7.1 0.3 -7.6 12.6 6.2 -0.2 1.8 1.6 1.9 3.7 11.7 3.9 -9.2 15.9 6.1 0.1 8.3 - 10.2 1.1 15.4 -4.0 -0.7 20.9 Мean -0.45 3.01 St Dev. 7.99 7.31 Variance 63.82 53.41 Run the appropriate test to compare the group means. What would you conclude?
Expert Solution
Step 1

Set up,

Null Hypothesis (H0): μ1=μ2,i.e there is no difference between the two groupsAlternative  Hypothesis (H1):μ1<μ2Where, μ1=mean weight of control group              μ2=mean weight of therapy group

trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 5 steps

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Knowledge Booster
Research Design Formulation
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, statistics and related others by exploring similar questions and additional content below.
Recommended textbooks for you
Glencoe Algebra 1, Student Edition, 9780079039897…
Glencoe Algebra 1, Student Edition, 9780079039897…
Algebra
ISBN:
9780079039897
Author:
Carter
Publisher:
McGraw Hill
Calculus For The Life Sciences
Calculus For The Life Sciences
Calculus
ISBN:
9780321964038
Author:
GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:
Pearson Addison Wesley,
Big Ideas Math A Bridge To Success Algebra 1: Stu…
Big Ideas Math A Bridge To Success Algebra 1: Stu…
Algebra
ISBN:
9781680331141
Author:
HOUGHTON MIFFLIN HARCOURT
Publisher:
Houghton Mifflin Harcourt
Holt Mcdougal Larson Pre-algebra: Student Edition…
Holt Mcdougal Larson Pre-algebra: Student Edition…
Algebra
ISBN:
9780547587776
Author:
HOLT MCDOUGAL
Publisher:
HOLT MCDOUGAL
SEE MORE TEXTBOOKS