Use the Empirical Rule to answer each question. During 1 week an overnight delivery company found that the weights of its parcels were normally distributed, with a mean of 16 ounces and a standard...

(a) What percent of the parcels weighed between 8 ounces and 20 ounces? (Round your answer to one decimal place.)
 %


(b) What percent of the parcels weighed more than 28 ounces? (Round your answer to two decimal places.)
 %