If the mean (average) weight of an ice hockey stick produced by Easton is to be equal to 2.93 pounds, with specification limits of +/- 0.021 pounds:
a. What is the most that a hockey stick produced by Easton can weigh in order for it to be considered acceptable?
b. What is the least that a hockey stick produced by Easton can weigh in order for it to be considered acceptable?