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Airline passengers get heavier. In response to the increasing weight of airline passengers, the Federal Aviation Administration in 2003 told airlines to assume that passengers average weight 190 pounds in the summer, including clothing and carry-on baggage. But passenger vary, and the FAA did not specify a standard deviation. A reasonable standard deviation is 35 pounds. Weights are not Normally distributed, especially when the population includes both men and women, but they are not very non-Normal. A commuter plane carries 19 passengers. What is the approximate probability that the total weight of the passengers exceeds 4000 pounds? Use the four-step process to guide your work.
The dean of the Western College of Business must plan the school's course offerings for the fall semester. Students demands make it necessary to offer at least 30 undergraduate and 20 graduate courses in the term. Faculty contract also dictate tha..
Do the data indicate that the sleeping pill is effective at a 1% level of significance?
What is the 95% confidence interval for the proportion of the population of employees who strongly dislike their current work experience?
Use the normal approximation to find the probability that the student scores 70% or lower on a 100-question test.
Find a 95% confidence interval for the proportion p of the inner-city, working-class group who eventually became alcoholics.
N=120, population standard deviation is (known) 5, alpha =.05, standard error of the mean (sigma of xbar)= .46, h0 is rejected if xbar
LPP using the graphical method. Solveout the following linear programming problem utilizing the corner point method.
Assume the probability that a person has the desease is 0.03 for all people, independently of each other, and compute the expected number of tests necessary for each group.
What is the probability that a randomly chosen eight-week old baby smiles between 2 and 18 seconds?
If the opinion poll had announced the margin of error for 80% confidence rather than 95% confidence, this margin of error would be?
Draw the scatter diagram. Does it appear that x and y are related? If so, how? Test to determine whether there is evidence of a linear relationship
Population standard deviation of 5 and you select a sample size of 100, what is the probability that the sample mean is between 47 and 49.5?
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