Question

In: Statistics and Probability

A clinical trial is run to assess the effects of different forms of regular exercise on...

A clinical trial is run to assess the effects of different forms of regular exercise on HDL levels in a sample of healthy men between the ages of 18 and 29. Participants in the study were randomly assigned to either one of three exercise groups (Weight training, Aerobic exercise or Yoga) or to a control group in which they were assigned to a regular exercise program. Participants were instructed to follow the program for 8 weeks. Their HDL levels were measured after 8 weeks and are summarized below. If we run the test at a 5% level of significance, is there a significant difference in mean HDL levels among the groups? HINT: SSE = 1129.76.

weight training: n = 10 mean= 52.7 STD Dev= 5.97

Aerobic Exercise: n= 10 mean= 43.1 STD Dev= 11.1

Stretching/Yoga: n= 10 mean= 57.0 STD Dev= 12.5

Control: n= 10 mean= 60.9 STD Dev= 13.3

Indicate the Between Groups Sums of Squares (SSB,).

Compute Error Sums of Squares For Each Group:

Complete the ANOVA table:

True or false: We have statistically significant evidence at α=0.05 to show that there is a significant difference in mean SBP among the treatment groups

Solutions

Expert Solution



Related Solutions

A clinical trial is run to assess the effects of different forms of regular exercise on...
A clinical trial is run to assess the effects of different forms of regular exercise on HDL levels in a sample of healthy men between the ages of 18 and 29. Participants in the study were randomly assigned to either one of three exercise groups (Weight training, Aerobic exercise or Yoga) or to a control group in which they were assigned to a regular exercise program. Participants were instructed to follow the program for 8 weeks. Their HDL levels were...
A clinical trial is run to assess the effects of different forms of regular exercise on...
A clinical trial is run to assess the effects of different forms of regular exercise on HDL levels in persons between the ages of 18 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 8 weeks and are summarized below. Weight Training Aerobic Exercise Stretching/Yoga 48 38 56 49 41 57...
Q1. A clinical trial is run to assess the effects of different forms of regular exercise...
Q1. A clinical trial is run to assess the effects of different forms of regular exercise on HDL levels in persons between the ages of 18 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 8 weeks and are summarized below. Weight Training 48 49 51 53 45 47 54 49...
A study is done to determine the effects of different forms of regular exercise on HDL...
A study is done to determine the effects of different forms of regular exercise on HDL levels in persons between the ages of 18 and 29. The forms of exercise observed were aerobic, weight training, and yoga. The participants HDL levels are measured after 8 weeks. Using multiple linear regression, the following regression line was created: HDL = 54.6-2.22(aerobic exercise)-1.75(weight training) Aerobic exercise is measured in hours. Weight training is a dichotomous (binary) outcome. 1=yes; 0=no Estimate the HDL level...
Scenario 1: A researcher wants to determine if different forms of regular exercise alter HDL levels...
Scenario 1: A researcher wants to determine if different forms of regular exercise alter HDL levels in obese middle aged males between the ages of 35 and 45.  Participants in the study are randomly assigned to one of four exercise groups – No Exercise, Resistance Training, Aerobic Exercise or Stretching/Yoga – and instructed to follow the program for 8 weeks.  Their HDL levels are measured after 8 weeks and are summarized below. Exercise Group N Mean Std Dev No exercise (TV watching...
The gynecology unit of a major hospital in Houston conducted a clinical trial to assess a...
The gynecology unit of a major hospital in Houston conducted a clinical trial to assess a new drug for preventing low birth weight. Nine pregnant women were randomly chosen to receive the drug and 11 others were randomly chosen to receive a placebo during the 25th week of pregnancy. The 20 birth weights are tabulated below. Patient ID                        Body weight (lb) Drug group Placebo group 1 6.9 6.4 2 7.6 6.7 3 7.3 5.4 4 7.6 6.9 5 6.8 5.3...
How is a clinical trial for a medical device similar to or different from a clinical...
How is a clinical trial for a medical device similar to or different from a clinical trial for a drug?
A clinical trial is run to investigate the effectiveness of an experimental drug in reducing preterm...
A clinical trial is run to investigate the effectiveness of an experimental drug in reducing preterm delivery to a drug considered standard care and to placebo. Pregnant women are enrolled and randomly assigned to receive either the experimental drug, the standard drug or placebo. Women are followed through delivery and classified as delivering preterm (< 37 weeks) or not. The data are shown below. Preterm Delivery Experimental Drug Standard Drug Placebo Yes 20 32 36 No 80 68 64 a)...
A clinical trial is run to investigate the effectiveness of an experimental drug in reducing preterm...
A clinical trial is run to investigate the effectiveness of an experimental drug in reducing preterm delivery to a drug considered standard care and to a placebo. Pregnant women are enrolled and randomly assigned to receive either the experimental drug, the standard drug, or a placebo. Women are followed through delivery and classified as delivering preterm (< 37 weeks) or not. The data are shown below. Using this data, conduct the appropriate hypothesis test to assess if there a statistically...
A clinical trial is run to investigate the effectiveness of an experimental drug in reducing preterm...
A clinical trial is run to investigate the effectiveness of an experimental drug in reducing preterm delivery. Preterm delivery Experimental Drug Standard Drug Placebo Yes 17 23 35 No 83 77 65 a) what test statistic is used to compute? b) what is the critical value for the test
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT