Chapter 7, Problem 22P

### Essentials of Statistics for the B...

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

Chapter
Section

### 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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