Question: I can't find the answer for question d. Can you show me on paper hpw you would have answered it Question 5: (11 points) Movie

I can't find the answer for question d. Can you show me on paper hpw you would have answered it

Question 5: (11 points) Movie trailers are designed to entice audiences by showing scenes from coming attrac- tions. Several trailers are usually shown in a theatre before the start of the main feature, and most are available via the Internet. The duration of a movie trailer is approximately Normal, with mean 150 seconds and standard deviation 30 seconds. (a) What is the probability that a randomly selected trailer lasts less than 2 minutes? (b) Any movie trailer that lasts beyond 4 minutes and 30 seconds is considered too long. What percentage of movie trailers is too long? (c) Ten percent of movie trailers have durations above what value? hs (d) In a sample of 16 randomly selected movie trailers, find the probability that the sample mean duration is greater than 4 minutes and 30 seconds

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