Timelimit 2 boun, to minutes [ol For a one-hour television broadcast, the mean show time (not including commercials) is 42.4 minutes with a standard deviation of 4.9 minutes. You may assume that the show times are normally distributed. Round your answers to four decimals for parts A and B, and use one decimal for pant C. a. If one broadcast is selected at random, find the probability that the broadcast contains at least 30.6 minutes of show time, b. In a sample of 13 one hour broadcasts, find the probability that the mean of their total show times is lex than 44.9 minutes: E. Find the fiftieth percentile. Rio. the show time that separates the lower 50's of show times from the rest Points possible 10 This as attempt I of