Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Statistics and Probability Expert

Multiple Comparisons Test.

To study the effects of different kinds of vigorous exercise on physical fitness, researchers randomized 33 healthy, non-athletic, 20- to 25-year-old made volunteers into three exercise programs: swimming, running, and bicycling. After six months, a variety of measures were taken of the men's fitness levels. One such measure was forced expiratory volume (FEV1), with higher values indicating better pulmonary fitness. The results were as follows:

FEV1(liters)

Programs

Sample size

Sample mean

Sample standard deviation

Swimming

11

4.4

0.4

Running

11

4.2

0.4

Bicycling

11

3.7

0.5

The one-way ANOVA table for these data is as follows, indicating as a minimum one significant difference in mean FEV1 among the three groups.

Source

DF

Sum of Squares

Mean Square

F Value

Pr > F

Model

2

2.86

1.43

7.53

0.0022

Error

30

5.7

0.19

 

 

Corrected Total

32

8.56

 

 

 

Perform all pair wise comparisons among the 3 programs, using a Tukey adjustment and an overall significance level of 0.05, and then interpret all your results.

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M921071

Have any Question? 


Related Questions in Statistics and Probability

Consider repair costs for car a and car b the mean repair

Consider repair costs for Car A and Car B. The mean repair cost for each is $500 per year. Which statistics about repair costs may play into your decision to purchase one of these cars? Which car would you choose? Explai ...

1 describe how structural equations modeling works2

1. Describe how structural equations modeling works. 2. Distinguish between latent variable modeling and path analysis as types of structural equations modeling.

1 in a pulse rate research a simple random sample of 120

1. In a pulse rate research, a simple random sample of 120 men results in a mean of 80 beats per minute, and a standard deviation of 11 beats per minute. Based on the sample results, the researcher concludes that the pul ...

A research concludes that the number of hours of exercise

A research concludes that the number of hours of exercise per week for adults is normally distributed with a mean of 3.5 hours and a standard deviation of 3 hours. (a) Find the 75th percentile for the distribution of exe ...

The potential revenues of all projects are in fact

The potential revenues of all projects are in fact uncertain. The company determines that the revenue for project 1 is following a uniform distribution ranging from $1,200,000 to $2,000,000. The revenue for project 2 is ...

Imagine that you want to know whether the sat is biased

Imagine that you want to know whether the SAT is biased against Group X and in favor of Group Y. You administer the SAT to members of the two groups; then, 4 years later, you examine the correlations between SAT scores a ...

Kindergarten children have heights that are approximately

Kindergarten children have heights that are approximately normally distributed about a mean of 38.8 inches and a standard deviation of 1.5 inches. If a random sample of 21 is taken, what is the probability that the sampl ...

Repeat given exercise using the following aumann model of

Repeat given Exercise, using the following Aumann model of incomplete information with beliefs: N = {I, II}, Y = {1, 2, 3, 4, 5}, F I = {{1, 2}, {3, 4}, {5}}, F II = {{1, 3, 5}, {2}, {4}} P(ω) = 1/5, ∀ ω ∈ Y. for A = {1, ...

Is there any difference between the proportion of americans

Is there any difference between the proportion of Americans who wish they were rich and the proportion of Canadians who wish they were rich? A random sample of 1,000 Americans showed that 550 wish they were rich, while a ...

One study based on responses from 1013 teenagers concluded

One study based on responses from 1013 teenagers concluded that 42% cite grades as their greatest source of pressure. Use .05 significance level to test the claim that fewer than half of all teenagers in the population f ...

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

WalMart Identification of theory and critical discussion

Drawing on the prescribed text and/or relevant academic literature, produce a paper which discusses the nature of group

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro