A manufacturer of front lights for automobiles tests lamps under a high-humidity; high-temperature environment using intensity and useful life as the responses of interest. The following table shows the performance of 130 lamps: useful life satisfactory unsatisfactory intensity satisfactory unsatisfactory 117 8 3 2

(a) Find the probability that a randomly selected lamp will yield unsatisfactory results under any criteria

(b) The customers for these lamps demand 95% satisfactory results. Can the lamp manufacturer meet this demand?