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According to the Air Transport Association of America, the average operating cost of an MD-80 jet airliner is $2,087 per hour. Suppose the operating costs of an MD-80 jet airliner are normally distributed with a standard deviation of $166 per hour.
(a) At what operating cost would only 23% of the operating costs be less?
(b) At what operating cost would 65% of the operating costs be more?
(c) What operating cost would be more than 85% of operating costs?
Physical Sciences A floor slip tester is used to measure the safety of a floor by comparing the measured coefficient of static friction with accepted standards.
Promotion occurs on average every 10 days in a large corporation. What is the probability that the next promotion will occur within:
what sample size should be used in the funding decision study? Use σ = $4000 as a planning value. ________________
Describe the strategy of mRNA localization. How does it induce cells to adopt different fates. What conditions favor the use of this mechanism?
List an example of Two quantitative variables that are likely to have a positive linear relationship, Two nominal variables that are likely to be independent.
How do I evaluate the sample size? How do I evaluate the statements for meaningfulness? How do I evaluate the statements for statistical significance?
suppose you flip a fair coin 10 times and it results in 1 tail and 9 heads. if you toss that coin again what is the
Suppose you have a distribution, X, with mean = 22 and standard deviation = 5. Define a new random variable Y = 8X - 3. Find the mean and standard deviation of Y.
What is the critical value at .1 significance? Can we conclude the mean lifetime of light bulbs made by this manufacturer differs from 48 months?
suppose that x1 gammaa 2 b 3 x2 gamma 3 3 and x3 gamma 1 3 are independent. here b denotes the scale parameter and a
Since the passage of the Staggers Rail Act of 1980, there has been an increase in the number of small railroads (Class III). Why has this number increased while the number of Class I railroads has decreased?
In a sample study regarding smoking habit in a town te following data were obtained men population 58% smokers 22% men smokers 18% tabulate the above data
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