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An investment advisor recommends the purchase of shares in Probaballisitics, Inc. He has made the following predictions:
P(Stock goes up 20% | Rise in GDP) = .6P(Stock goes up 20% | Level GDP) = .5P(Stock goes up 20% | Fall in GDP) = .4
An economist has predicted that the probability of a rise in the GDP is 30%, whereas the probability of a fall in the GDP is 40%.
a. What is the probability that the stock will go up 20%?
b. We have been informed that the stock has gone up 20%. What is the probability of a rise or fall in the GDP?
Assume the population standard deviation is 1.2 hours. The standard error of the mean is:
Enzymatic method: 13.1, 12.7, 12.6, 13.3, 13.3. GC method: 13.5, 13.3, 13.0, 12.9. Does the enzymatic method give the same value as the GC method at the 95% confidence level?
Simulate a completely random process of length 48 with independent, t-distributed values each with 5 degrees of freedom. Construct the time series plot. Does it look "random" and nonnormal? Repeat this exercise several times with a new simulation ..
Prepare a scatter plot and Interpret the meaning of slope, b1, in this problem
What is the probability that the first card dealt is an ace of spade?
What sample size and acceptable level would result in a probability of .05 that a good batch will be rejected and a probability of .10 that a bad batch will be accepted?
A university club consists of 4 men and 6 women. Two members are chosen at random without replacement. Let X = 0 if first person chosen is male, 1 if first person chosen is female. Y = 0 if second person chosen is male, 1 if second person chosen i..
Determine probability of waiting less than 12 minutes between successive speeders. By using cumulative distribution function of X.
The participants in a television quiz show are picked from a large pool of applicants with approximately equal numbers of men and women.
A graphical presentation may accomplish ALL BUT which of the following objectives? Illustrate the amount of variation in the data.
Given a normal distribution of data, we know from the Empirical Rule that in between 2 standard deviations from the mean
In performing the symmetric approximation, you calculate a mean of the total system cost as $1,725K. The variance is 22500. The POE is $1,600K.
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