The average weight of a particular box of crackers is 23.5 ounces with a standard deviation of 1.1 ounces. The weights of the boxes are normally distributed. a. What percent of the boxes weigh more than 22.4 ounces? (Round your answer to the nearest hundredth percent.) b. What percent of the boxes weigh less than 21.3 ounces? (Round your answer to the nearest hundredth percent.)