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As reported by a recent survey. the fast-food restaurant with the best drivethrough time had a mean time spent in the drive-through of p =

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As reported by a recent survey. the fast-food restaurant with the best drivethrough time had a mean time spent in the drive-through of p = 64.3 seconds. Assuming drive-through times are normally distributed with o = 2.8 seconds. complete parts (a) through ((1) below. (a) What is the probability that a randomly selected car will get through the drive-through in less than 60.9 seconds? The probability is D (Round to four decimal places as needed.) . (b) What is the probability theta randomly selected car will spend more than 70.2 seconds in the drive-through? The probability is 1]. (Round to four decimal places as needed.) (c) What proportion of cars spend between 60.9 and 70.2 seconds in the drive-through? [1 (Round to four decimal places as needed.) v (d) Would it be unusual for a car to spend more than 70.2 seconds In the drive-through? , t) O A No. because he probability of randomly choosing a car that waits more than 70.2 seconds in the drive-through is less than 5%. O B. Yes; because the probabity of randomly choosing a tar that waits more than 70.2 seconds in the drive-through is less than 5%. O o.' Yes, because the probability of randomly choosing a car that waits more than 70.2 seconds in the drive-through is greater than 5%. O D. No. because the probability of randomly choosing a car that waits more than 70.2 seconds In the drive-through is greater than 5%

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