2. A clinical trial is run to assess the effects of different forms of regular exercise on HDL levels in persons between the ages of 19 and 29. Participants in the study are randomly assigned to one of three exercise groups-weight training, aerobic exercise, or stretching/yoga-and instructed to follow the program for 8 weeks. Their HDL levels are measured after 9 weeks and are summarized below. Exercise Group Weight Training Aerobic Exercise Stretching/Yoga Mean 49.7 Std Dev 10.2 20 11.1 12.5 20 43.1 20 57.0 a) Complete the following ANOVA table. Source of Sums of df Mean Squares Error Between Squares Within Total 6157.32 b) Write the hypotheses to be tested. c) Write the decision rule. Please find the F for the closest df listed.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
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Chapter4: Equations Of Linear Functions
Section4.5: Correlation And Causation
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2. A clinical trial is run to assess the effects of different forms of regular exercise on HDL levels in persons
between the ages of 19 and 29. Participants in the study are randomly assigned to one of three exercise
groups-weight training, aerobic exercise, or stretching/yoga-and instructed to follow the program for 8
weeks. Their HDL levels are measured after 9 weeks and are summarized below.
Exercise Group
N
Mean
Std Dev
Weight Training
20
49.7
10.2
Aerobic Exercise
20
43.1
11.1
Stretching/Yoga
20
57.0
12.5
a) Complete the following ANOVA table.
Source of
Sums of
df
Mean Squares
Error
Squares
Between
Within
6157.32
Total
b) Write the hypotheses to be tested.
c) Write the decision rule. Please find the F for the closest df listed.
d) What is the conclusion?
Transcribed Image Text:2. A clinical trial is run to assess the effects of different forms of regular exercise on HDL levels in persons between the ages of 19 and 29. Participants in the study are randomly assigned to one of three exercise groups-weight training, aerobic exercise, or stretching/yoga-and instructed to follow the program for 8 weeks. Their HDL levels are measured after 9 weeks and are summarized below. Exercise Group N Mean Std Dev Weight Training 20 49.7 10.2 Aerobic Exercise 20 43.1 11.1 Stretching/Yoga 20 57.0 12.5 a) Complete the following ANOVA table. Source of Sums of df Mean Squares Error Squares Between Within 6157.32 Total b) Write the hypotheses to be tested. c) Write the decision rule. Please find the F for the closest df listed. d) What is the conclusion?
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