1. The life expectancy of Timely brand watches is normally distributed with a mean of four years and a standard deviation of 0.7year. (a) Find the probability that a randomly selected watch will be in working condition for more than five years? (3 points)
(b) 95% of the watches will have a life expectancy of greater than how many years? (2 Points)

The smelting department of kiner company has the following production and cost data for november. production: beginning work in process 3,700 units that are 100% complete as to materials and 23% complete as to conversion costs; units transferred out 10,500 units; and ending work in process 8,100 units that are 100% complete as to materials and 41% complete as to conversion costs. compute the equivalent units of production for (a) materials and (b) conversion costs for the month of november. materials conversion costs total equivalent units