An average light bulb lasts 300 days with a standard deviation 50 days. Assume the bulb life is normally distributed. a) Find the probability that a light bulb will last more than 365 days. b) What is the probability of a light bulb lasting 250 to 370 days? c) What is the minimal level of 15% of light bulbs with the longest last? Put down the results and the numeric expression written in the SPSS procedure! Put down four decimal places