Use the following information to answer the next three quest…
Use the following information to answer the next three questions. The length of time to check out at a retail store is measured in the number of minutes from a customer entering the line with their cart full of goods until the payment process is completed. Data shown for the (checkout) variable measured in minutes are based on a random sample of 15 customer checkout times. > midrange midrange 9.05 > median(checkout) 8.4 > mean(checkout) 7.36 > summary(checkout) Min. 1st Qu. Median Mean 3rd Qu. Max. 2.70 5.45 8.40 7.36 8.75 12.70 > max(checkout) 12.7 > min(checkout) 2.7 > range(checkout) 2.7 12.7 > quantile(checkout,0.75) 75% 8.75 > quantile(checkout,0.25) 25% 5.45 > var(checkout) 7.726857 > sd(checkout) 2.779722