Do cars on eastbound Interstate 10 near the Louisiana-Texas border travel slower than the cars in westbound Interstate 10 near the Louisiana-Texas border? If so, then perhaps more people are looking forward to going to Texas rather than going to Louisiana. Hahahaha. So, for 3 months, data consisting of rates in miles per hour of cars were collected, and the mean and standard deviation of those rates were tabulated. Here are the results:
EASTBOUND WESTBOUND
µ = 75 µ = 78
s = 3.2 s = 5
n = 60 n = 40
Can it be concluded that people in eastbound Interstate 10 drive slower than people in westbound Interstate 10? Use a significance level of 0.1.