Purchase Solution

# Hypothesis

Not what you're looking for?

A) Analyse the data below to test the hypotheses that there are no differences between the two groups of subjects in terms of their walking time to exhaustion (in seconds) and ratings of perceived exertion (RPE) after 8 minutes of walking.

Healthy subjects
---------------------------------------------------------------------------------------------------------------------------
Time 1014 684 810 850 840 978 1002 860 900 930 920
RPE 10 14 15 14 14 12 12 13 14 13 12

CHD patients
-----------------------------------------------------------------------------------------------------------------------------
Time 864 720 638 708 786 640 800 750 594 750 725
RPE 25 16 16 14 13 16 12 14 17 13 14
------------------------------------------------------------------------------------------------------------------------------

N.B. Your analysis should consider appropriate diagnostic tests and the risk of committing a Type I error.

b) The CHD patients were measured 1 week later in terms of their treadmill exercise time (see re-test data below). Assess the hypothesis that there is no difference between the repeated measurements.

CHD patients (re-test)
-------------------------------------------------------------------------------------------------------------------------------
Time 880 700 650 720 800 635 830 775 630 755 780

##### Solution Summary

a) Analyse the data below to test the hypotheses that there are no differences between the two groups of subjects in terms of their walking time to exhaustion (in seconds) and ratings of perceived exertion (RPE) after 8 minutes of walking.

Healthy subjects
---------------------------------------------------------------------------------------------------------------------------
Time 1014 684 810 850 840 978 1002 860 900 930 920
RPE 10 14 15 14 14 12 12 13 14 13 12

CHD patients
-----------------------------------------------------------------------------------------------------------------------------
Time 864 720 638 708 786 640 800 750 594 750 725
RPE 25 16 16 14 13 16 12 14 17 13 14
------------------------------------------------------------------------------------------------------------------------------

N.B. Your analysis should consider appropriate diagnostic tests and the risk of committing a Type I error.

b) The CHD patients were measured 1 week later in terms of their treadmill exercise time (see re-test data below). Assess the hypothesis that there is no difference between the repeated measurements.

CHD patients (re-test)
-------------------------------------------------------------------------------------------------------------------------------
Time 880 700 650 720 800 635 830 775 630 755 780

Solution provided by:
###### Education
• BE, Bangalore University, India
###### Recent Feedback
• "What does 1 and 0 means in the repair column?"
• "Went through all of the formulas, excellent work! This really helped me!"
• "try others as well please"
• "Thank you, this helped a lot. I was not sure how to plug in those numbers to a formula. This was a great help. Now I have to figure out how to explain cost of capital is used in net present value analysis, and how cost of capital is used in net present value analysis. This stuff gets confusing."

##### Free BrainMass Quizzes

Each question is a choice-summary multiple choice question that presents you with a statistical concept and then 4 numbered statements. You must decide which (if any) of the numbered statements is/are true as they relate to the statistical concept.

##### Measures of Central Tendency

Tests knowledge of the three main measures of central tendency, including some simple calculation questions.

##### Terms and Definitions for Statistics

This quiz covers basic terms and definitions of statistics.

##### Measures of Central Tendency

This quiz evaluates the students understanding of the measures of central tendency seen in statistics. This quiz is specifically designed to incorporate the measures of central tendency as they relate to psychological research.