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A study found that the mean amount of time cars spent In drive-throughs of a certain fasHood restaurant was 155.8 seconds. Assuming drive-through times are

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A study found that the mean amount of time cars spent In drive-throughs of a certain fasHood restaurant was 155.8 seconds. Assuming drive-through times are normally distributed With a standard dewation of 29 seconds. complete parts (a) through (d) below. Click here to view the standard normal distribution table (page 1); Click here to View the standard normal distribution table (p'ag); (a) What is the probability that a randomly selected car will get through the restaurant's drive-through in less than .101 seconds? The probability that a randomly selected car will get through the restaurant's drive-through in less than 101 seconds is El. (Round to four decimal places as needed.) (b) What is the probability that a randomly selected car will spend more than 206 seconds in the restaurant's drive-through? The probability that a randomly selected Car will spend more than 206 seconds in the restaurant's drive-through is :1. (Round to (our decimal places as needed.) (c) What proportion of cars spend between 2 and 3 minutes in the restaurant's drive-through? The proportion of cars that spend between 2 and 3 minutes in the restaurant's drive-through is (Round to four decimal places as needed.) (d) Would it be unusual for a car to spend more than 3 minutes in the restaurant's drivethrough? Why? The probability that a car spends more than 3 minutes in the restaurant's drive-through is . so it :1 be unusual, since the probability is V than 0.05. (Round to tour decnmal places as needed.)

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