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Your consulting company has been hired by an airline to analyze data on passenger and luggage weights. The data refer to a 200 seat aircraft that is always full. You are given data that show that as a good approximation passenger weights W ~ N (150, 400) checked luggage weights B ~ N (60, 100) hand luggage weights H ~ N (10, 25) and that passenger weight, checked luggage weight, and hand luggage weight are mutually independent. All weights are in pounds.a. The airline wants to know what maximum total weight limit on passengers plus luggage it should choose so that 95% of flights will be under the limit. (Total weight refers to the sum of weights of all passengers, plus all luggage.)b. How would your answer change if, instead of being independent, W, B, and H have the following pairwise correlations: Corr(W, B) = .10 Corr(W, H) = 0 Corr(B, H) = .25I do not know how to approach this problem. I award full karma for a clear thought answer (A+)!
Suppose that weights of bags of potato chips coming from a factory follow a normal distribution with mean 12.8 ounces and standard deviation .6 ounces.
Criminal activity with guns. Will deter criminal use of these weapons? People from entering Canada, how can we stop gun smugglers?
The publisher of Celebrity Living claims that the mean sales for personality magazines that feature people such as Angelina Jolie or Paris Hilton are 1.5 million copies per week.
If two students were selected at random, what is the probability that they would both read at less than 400 words per minute?
What is the power of such a study if a two-sided test is to be used with α = .05? How many people would need to be studied to have 80% power under the assumptions in problem A?
Each home was 24 and the standard deviation of the sample was 5 people. Develop a 98 percent confidence interval for the population mean.
A professor needs to select a volunteer for a project .which of the following would not be an example of a simple random sample ?A)he chooses a number between 00 and 99.
Multiple regression and correlation analysis provides a means for examining the relationship between of two (2) or more independent variables and the dependent variable.
The probability that he passes both finals is .60. What is the probability that the student will pass at least one of these final examinations?
Assuming the manufacturer's claim is true, what is the probability the consumer group's sample has a mean life of 52 or fewer months?
A financier whose specialty is investing in comedy shows has observed that, in general, shows with "big- name" stars seem to generate more revenue than those shows whose stars are less well known.
Significance level to test the claim that less than half (.5) of all executives identify that error as being the most common job interviewing error.
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