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Your supervisor has just stopped by your desk and is frantic. She has a meeting with the senior vice president in 25 minutes and has misplaced some data. She needs to report the fugacity of n-pentane at 192°C and 1.8 MPa in a mixture of 13.7 mol % n-pentane, 32.1 mol % n-butane, 21.5 mol % isobutane, and 32.7 mol % n-hexane, and the number needs to be as correct as possible. Calculate the value for the fugaciy of n-pentane in this mixture.
1. Explain why Bayes' theorem is necessary for handling additional information in a decision problem. 2. Explain the meaning of the term predictive probability.
Test whether there is difference in the proportion of viewers using Chi square test.
In 2007, a Gallup Poll conducted face- to-face interviews with 1006 adults in Saudi Arabia, aged 15 and older, asking them questions about how they get in- formation.
consider taking samples of size 25 from a population with proportion 0.65.a find the mean of the distribution of sample
A gallop poll that was based on telephone interviews conducted April 9-12, 2012, using a random sample of 1016 adults aged 18 and older, living in all 50 US states and the District of Columbia, indicated that 29% of Americans spent more money in rece..
Calculate a four-quarter weighted moving average for the number of America Online (AOL) subscribers for the nine quarters of data. The data are reported in thousands.
The margin of error for a 95% confidence interval estimate for the proportion of all students with cell phones is
Find the 95% confidence interval of the mean score for all golfers if this is a sample of 110 golfers instead of a sample of 93.
To revise an existing inventory system, a company needs to know something about the lead time for orders it places for a critical part. The company looks at the last 20 orders placed and finds that the lead time in days are:
53% of all recorded births are boys if 6 babies born in this hospital are selected at random find the probability that two of the babies selected are boys.
Prove that each of the following sets is countable: The set of all numbers with two distinct decimal expansions (like 0.500... and 0.4999...);
There is a probability that the river will flood next year. Riverside's profits for the coming year depend on whether Laura buys the flood insurance and whether the river floods.
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