4.22. The useful life of manufacturing equipment for an electronics company is normally distributed and usually last an average of 5 years with a standard deviation of 1.5 years. a. (Fill in the blank) 80% of the manufacturing equipment lasts more than years. b. (Fill in the blank) 40% of the manufacturing equipment lasts less than years. c. The cost of this piece of equipment is recouped by the company after 2 years of use. What is the chance that the company will not recoup the cost of the equipment?