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Question: A road between Fairbanks and Nome, Alaska, will have a most likely construction cost of $4 million per mile. Doubling this cost is considered to have a probability of 30%, and cutting it by 25% is considered to have a probability of 10%. The state's interest rate is 8%, and the road should last 40 years. What is the probability distribution of the equivalent annual construction cost per mile?
Conduct a test for equality of average hotel room prices in these two countries against a two-tailed alternative. Which country has less expensive hotels?
1. Why is it important to think carefully about decision situations that involve multiple conflicting objectives? 2. Explain the general decision-analysis approach to dealing with multiple objectives.
According to a recent survey, the probability that a passengerfiles a complaint with the Department of Transportation about aparticular U.S. airline is .000014. Suppose 100,000 passengers whoflew with this particular airline are randomly contacted..
In a certain? country, the life expectancy for women in 1900 was 47 years and in 2000 it was 82 years.
For following set of scores, prepare a frequency distribution, a histogram, and a stem-and-leaf display for each variable. Also calculate the mean, the median and the standard deviation of each score.
Find Spearman's rank correlation coefficient, and interpret this value. Do these data suggest that cruise prices are reduced at the last minute? Justify your an
Describe the methods for interpretation of categories (row or column) in CA. Can categories always be directly compared based on proximity in the perceptual map?
last year the records of dairy land inc. a convenience store chain showed the mean amount spend by a customer was 30. a
If the dean wanted a 90% confidence interval of mean annual salary of graduates with width no more than $3,000, how large a sample of graduates would she need?
the local dq kept track of the number of paying cuustomers during the noon hour for 100 days. the resulting statistics
In January 2002, two students made worldwide headlines by spinning a Belgian euro 250 times and getting 140 heads that s 56%. That makes the 90% confidence interval (51%, 61%). What does this mean? Are these conclusions correct? Explain.
Show that if X1 has a Poisson distribution with parameter A1, if X2 has a Poisson distribution with parameter ?2, and X1 and X2 are independent
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