Chapter 9, Problem 90CRE

Reaction Distances Reaction distances in centimeters for a random sample of 40 college students were obtained. Shorter distances indicate quicker reactions. Each student tried catching a meter stick with his or her dominant hand and nondominant hand. The subjects all started with their dominant hand. The data are available at the text’s website.

Examine summary statistics, and explain what we can learn from them. Then do an appropriate test to see whether the mean reaction distance is shorter for the dominant hand. Use a significance level of $0.05$.