A boat capsized and sank in a lake. Based on an assumption of a mean weight of 130 Ib, the boat was rated to carry 70 passengers (so the load limit was 9,100 lb). After the boat sank, the assumed mean weight for similar boats was changed from 130 lb to 175 lb. Complete parts a and b below. overloaded because the 70 passengers a. Assume that a similar boat is loaded with 70 passengers, and assume that the weights of people are normally distributed with a mean have a mean weight greater than 130 lb. 180.7 Ib and a standard deviation of 35.5 lb. Find the probability that the boat The probability is 1. (Round to four decimal places as needed.) b. The boat was later rated to carry only 15 passengers, and the load limit was changed to 2,625 Ib. Find the probability that the boat maximum capacity of 2,625 Ib). overloaded because the mean weight of the passengers is greater than 175 (so that their total weight is greater than the The probability is (Round to four decimal places as needed.)

MATLAB: An Introduction with Applications
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A boat capsized and sank in a lake. Based on an assumption of a mean weight of 130 lb, the boat was rated to carry 70 passengers (so the load limit was 9,100 lb). After the boat sank, the assumed mean weight for similar boats was changed from 130 lb to
175 lb. Complete parts a and b below.
a. Assume that a similar boat is loaded with 70 passengers, and assume that the weights of people are normally distributed with a mean of 180.7 Ib and a standard deviation of 35.5 lb. Find the probability that the boat is overloaded because the 70 passengers
have a mean weight greater than 130 lb.
The probability is 1.
(Round to four decimal places as needed.)
b. The boat was later rated to carry only 15 passengers, and the load limit was changed to 2,625 lb. Find the probability that the boat is overloaded because the mean weight of the passengers is greater than 175 (so that their total weight is greater than the
maximum capacity of 2,625 lb).
The probability is
(Round to four decimal places as needed.)
Transcribed Image Text:A boat capsized and sank in a lake. Based on an assumption of a mean weight of 130 lb, the boat was rated to carry 70 passengers (so the load limit was 9,100 lb). After the boat sank, the assumed mean weight for similar boats was changed from 130 lb to 175 lb. Complete parts a and b below. a. Assume that a similar boat is loaded with 70 passengers, and assume that the weights of people are normally distributed with a mean of 180.7 Ib and a standard deviation of 35.5 lb. Find the probability that the boat is overloaded because the 70 passengers have a mean weight greater than 130 lb. The probability is 1. (Round to four decimal places as needed.) b. The boat was later rated to carry only 15 passengers, and the load limit was changed to 2,625 lb. Find the probability that the boat is overloaded because the mean weight of the passengers is greater than 175 (so that their total weight is greater than the maximum capacity of 2,625 lb). The probability is (Round to four decimal places as needed.)
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