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Essentials of Statistics for the B...

8th Edition
Frederick J Gravetter + 1 other
ISBN: 9781133956570

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Chapter
Section
BuyFindarrow_forward

Essentials of Statistics for the B...

8th Edition
Frederick J Gravetter + 1 other
ISBN: 9781133956570
Textbook Problem

Callahan (2009) conducted a study to evaluate the effectiveness of physical exercise programs for individuals with chronic arthritis. Participants with doctor-diagnosed arthritis either received a Tai Chi course immediately or were placed in a control group to begin the course 8 weeks later. At the end of the 8-week period, self-reports of pain were obtained for both groups. Data similar to the results obtained in the study are shown in the following table.

Self-Reported Level of Pain
  Mean SE
Tai Chi course 3.7 1.2
No Tai Chi course 7.6 1.7
  • a. Construct a bar graph that incorporates all of the information in the table.
  • b. Looking at your graph, do you think that participation in the Tai Chi course reduces arthritis pain?

a.

To determine

To draw: The bar graph.

Explanation

Given info:

The information is based on a study to evaluate the effectiveness of physical exercise programs. The data representing the scores of self-repots of pain after end of the course from both groups.

Calculations:

Software procedure:

Step by step procedure to draw bar-graph using the MINITAB software:

  • Go to Graph > Bar-chart...

b.

To determine

To explain: If the participation in the Tai Chi course reduces arthritis pain or not.

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