A national manufacturer of unattached garages discovered that the distribution of the lengths of time it takes two construction workers to erect the Red Barn model is approximately normally distributed with a mean of 32 hours and a standard deviation of 2 hours. What percent of the garages take between 32 and 34 hours to erect?

Question

Quizplus · Accepted Answer

The time between 32 and 34 hours corresponds to one standard deviation above the mean in a normal distribution. Approximately 34.13% of the data falls between the mean and one standard deviation above the mean.

A National Manufacturer of Unattached Garages Discovered That the Distribution