A study found that the mean amount of time cars spent in drive-throughs of a certain fast-food restaurant was 157.5 seconds. Assuming drive-through times are normally distributed with a standard deviation of 33 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 (page 2). ww (Round to four 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 drive-through? Why? The probability that a car spends more than 3 minutes in the restaurant's drive-through is so it 0.05. (Round to four decimal places as needed.) be unusual, since the probability is than

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