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Unformatted text preview: 1. In response to the increasing weight of airline passengers, the FAA told airlines to assume the passengers average 190 lbs in the summer, including clothing and carry-on baggage. A reasonable standard deviation is 35 lbs. Weights are not normally distributed when the population includes both men and women, but they are not very non-normal.A commuter plane carries 25 passengers. a. What is the approximate probability that the total weight of the pas- sangers exceeds 5200 lbs? b. Suppose that the population of men, including clothing and carry-on baggage, is normally distributed with mean 200 lbs and standard deviation 25 lbs. Would it be unusual to see a passenger whose combined weight is 300 lbs? 1 2. A school administrator claims that students whose first language learned is not English score worse than students whose first language is English. The mean SAT verbal score of students whose first language is English is 515....
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This note was uploaded on 02/24/2011 for the course STAT 3022 taught by Professor Staff during the Spring '08 term at Minnesota.
- Spring '08
- Standard Deviation