You may need to use the appropriate appendix table or technology to answer this question. The life expectancy of Timely brand watches is normally distributed with a mean of six years and a standard deviation of eight months. (a) What is the probability that a randomly selected watch will be in working condition for more than seven years? [Round your answer to four decimal places.) E {b} The company has a five-year warranty period on their watches. What percentage of their watches will be in operating condition after the warranty period? (Round your answer to two decimal places.) (c) What is the minimum and the maximum life expectancy (in months} of the middle 95% of the watches? (Round your answers to two decimal places.) maximm :mamm {d} Ninety-five percent of the watches will have a life expectancy of at least how many months? (Round your answer to two decimal places}