Answer Happy

Astudy found that the mean amount of time cars spent in drive-throughs of a certain fast-food restaurant was 1543 seconds. Assuming drive-through times are nomaly distributed with a standard deviation of 28 seconds, parts (4) through below (a) What is the probability that a randomly selected car will get through the restaurants drive through in less than 118 seconds? The probability that a randomly selected car will get through the restaurants drive-through in less than 118 What is the probability that a randomly selected car will spend more than 203 seconds in the restaurant's drive through The probability that a randomly selected car will spend more than 203 seconds in the restaurants drive though Round to four decimal) (4) What proportion of cars spend between 2 and 3 minutes in the restaurants? The proporten of cars that spend between 2 and 3 minutes in the restaurants de through (Round to four dece places as needed) in Wi unusual for a cartapend more than 3 minutes in the restaurants vrough? Why The probability that a car spends more than 3 minutes in the restaurants (Round to four decimal places as needed) rough than 0.05
A study found that the mean amount of time cars spent in drive-throughs of a certain fast-food restaurant was 154.3 seconds. Assuming drive-through times are normally distributed with a standard deviation of 28 seconds, complete parts (a) through (d) below (a) What is the probability that a randomly selected car will get through the restaurants drive through in less than 118 seconds? The probability that a randomly selected car will get through the restaurants drive through in less than 118 seconds is (Round to four decimal places as needed) (b) What is the probability that a randomly selected car will spend more than 203 seconds in the restaurants drive-through The probability that a randomly selected car will spend more than 203 seconds in the restaurant's drive-through is Round to four decimal places as needed) (c) What proportion of cars spend between 2 and 3 minutes in the restaurants drive through The proportion of cars that spend between 2 and 3 minutes in the restaurants arive 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 restaurants drive-through? Why? The probability that a car spends more than 3 minutes in the restaurants drive-through so [ (Round to four decimal places as needed) be unusual, since the probability is than 0.05