A sample of 50 Denver employees yielded a mean distance of 410 miles with a population standard deviation of 40 miles. A sample of 45 Salt Lake City employees yielded a mean distance of 399 miles with...

A sample of 50 Denver employees yielded a mean distance of 410 miles with a population standard deviation of 40 miles. A sample of 45 Salt Lake City employees yielded a mean distance of 399 miles with a population standard deviation of 34 miles. If we were to conduct a Hypothesis test at a .05 significance level, what would be the correct test statistic rounded to two decimal places?