chegg giselle is a personnel manager in a large corporation. each month she must review 36 of the employees. from past experience, she has found that the reviews take her approximately 5.5 hours each to do with a population standard deviation of 2.5 hours. let χ be the random variable representing the time it takes her to complete one review. assume χ is normally distributed. let x ¯ be the random variable representing the mean time to complete the 36 reviews. assume that the 36 reviews represent a random set of reviews.find the 95th percentile for the mean time to complete one month's reviews.find the 95th percentile for the mean time to complete one month's reviews.