Question: A trucking company would like to compare two different routes

A trucking company would like to compare two different routes for efficiency. Truckers are randomly assigned to two different routes. Twenty truckers following Route A report an average of 40 minutes, with a standard deviation of 3 minutes. Twenty truckers following Route B report an average of 43 minutes, with a standard deviation of 2 minutes. Histograms of travel times for the routes are roughly symmetric and show no outliers.
a) Find a 95% confidence interval for the difference in average time for the two routes.
b) Will the company save time by always driving one of the routes? Explain.



Sale on SolutionInn
Sales0
Views165
Comments
  • CreatedMay 15, 2015
  • Files Included
Post your question
5000