4. The delivery time for all food orders at a fast food restaurant have a mean of 6.7 minutes and a standard deviation of 2.1 minutes. a. Assume a normal distribution and compute the probability that an order is delivered in less than 6 minutes prob = b. Find the probability that the mean of 40 orders is less than 6 minutes. prob = c. Find the probability that serving 40 orders takes less than a total of 4.5 hours.

MATLAB: An Introduction with Applications
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4. The delivery time for all food orders at a fast food restaurant have a mean of 6.7 minutes and a standard
deviation of 2.1 minutes.
a. Assume a normal distribution and compute the probability that an order is delivered in less than 6 minutes.
prob =
b. Find the probability that the mean of 40 orders is less than 6 minutes.
prob =
c. Find the probability that serving 40 orders takes less than a total of 4.5 hours.
prob =
%3D
Transcribed Image Text:4. The delivery time for all food orders at a fast food restaurant have a mean of 6.7 minutes and a standard deviation of 2.1 minutes. a. Assume a normal distribution and compute the probability that an order is delivered in less than 6 minutes. prob = b. Find the probability that the mean of 40 orders is less than 6 minutes. prob = c. Find the probability that serving 40 orders takes less than a total of 4.5 hours. prob = %3D
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