A boat capsized and sank in a lake. based on an assumption of a mean weight of 136 lb, the boat was rated to carry 70 passengers (so the load limit was 9,520 lb). After the boat sank, the assumed mean wight for similar boats was changed from 136 lb to 172 lb. Complete a and b below. Assume that a similar boat is loaded with 70 passengers, and assume that the weights of people are normally distributed with a mean of 176.8 in and a standard deviation of 38.7 lb. Find the probability that the boat is overloaded because the 70 passengers have a mean weight g
A boat capsized and sank in a lake. based on an assumption of a
Assume that a similar boat is loaded with 70 passengers, and assume that the weights of people are
The boat was later read to carry only 35 passengers, and the load limit was changed to 2,752 ib. FInd the probability that the boat is overloaded because the mean weight of the passengers is greater than 172 (so that their total weight is greater than the maximum capacity of 2,752lb)
Do the ratings appear to be safe when the boat is loaded with 16 passengers? Choose the correct answer below.
a. because the probability of overloading is lower with the new ratings than with the old ratings, the new ratings appear to be safe
b. because 176.8 is greater than 172, the new ratings do not appear to be safe when the boat is loaded with 16 passengers.
c. because there is a high probability of overloading, the new ratings do not appear to be safe when the boat is loaded with 16 passengers.
d. because there is a high probability of overloading the new ratings appear to be safe when the boat is loaded with 16 passengers
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