Boston College
posted by Doe .
Suppose that the population of weights of airline passengers has mean 150 lbs. and standard deviation 25 lbs. A certain plane has a capacity of 7,800 lbs.
(a) What is the probability that a flight of 50 passengers will exceed capacity it?
(b) If we wish to reduce the chance of overload to 0.01, how much must the capacity be increased?
Respond to this Question
Similar Questions

math
A fitness company surveyed the weights of its 90 costumers. Assume that the weights are normally distrubted with a mean of 162 lbs and a standard deviation of 3.5 lbs. If you select one of its costumers randomly, what is the probability … 
math
A fitness company surveyed the weights of its 90 costumers. Assume that the weights are normally distrubted with a mean of 162 lbs and a standard deviation of 3.5 lbs. If you select one of its costumers randomly, what is the probability … 
Statistics
Suppose that heights of newborns are bell shaped with a mean of 6.8 pounds and a standard deviation of 1.3 pounds. What percentage of weights are: a) Below 6.8 lbs.? 
statistics
The weights of steers in a herd are distributed normally. The standard deviation is 200 lbs and the mean steer weight is 1200 lbs. Find the probability that the weight of a randomly selected steer is less than 1560 lbs. (Round your … 
statistics
Based on data from the National Health and Nutrition Examination Survey assume that the weights of men are normally distributed with a mean of 170 lbs. and a standard deviation of 30lbs. a. Find the probability that a man randomly … 
Statistics
Suppose that the population of weights of airline passengers has mean 150 lbs. and standard deviation 25 lbs. A certain plane has a capacity of 7,800 lbs. (a) What is the probability that a flight of 50 passengers will exceed capacity … 
Statistics
The weights of the fish in a certain lake are normally distributed with a mean of 15lbs. and standard deviation of 6lbs. If a sample of 5 fish are taken from the lake, find the probability their means weights are between 12.6 lbs. … 
statistics
Case Study Chapter 6 and 7 FOR FULL CREDIT SHOW EQUATIONS USED AND WORK. ELEVATOR CAPACITY: Suppose an elevator has a maximum capacity of 16 passengers with a total weight of 2500 lbs. The mean weight of females is less than the mean … 
Statistics
The weight of luggage that a randomly selected airline passenger brings onto a flight has a mean of 35 lbs and a standard deviation of 6 lbs. If a flight has 80 passengers, within what range would the average weight of their luggage … 
Math
The weights of all one hundred (100) 9th graders at a school are measured, and it is found that the mean of all the measurements is 100 lbs., with a standard deviation of 15 lbs. Explain how you would use this information to determine …