A vendor converts the weights on the packages she sends from pounds to kilograms (1 kg z 2.20 lb). The mean weight of the package was 21 lb with standard deviation of 0.37 lb. After repackaging (converting units), the mean becomes :l kg (round your answer to 2 decimal places), and the standard deviation becomes :l kg (round your answer to 2 decimal places). Check A Tim Horton's has recently opened up in Edmonton. It is observed that, on any given morning, the time it takes for a car to be served after ordering in the drive-thru follows a normal distribution with u = 7 minutes and a = 2.3 minutes. (a) What is the probability that it takes less than 5.5 minutes for a randomly selected car to be served after ordering? (Round your answer to four decimal places, if needed.) :l (b) What is the probability that it takes more than 7.0 minutes for a randomly selected car to be served after ordering? (Round your answer to four decimal places, if needed.) :l Check Find the area under the standard normal distribution represented by each probability. (Round your answers to 4 decimal places.) a)P(Z122 C] (c) P(-'l.87