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Let X and Y be independent geometric distributions. U = min(X,Y), V = X - Y (a) Show that U and V are independent (b) Find the distribution of Z = X / (X+Y) (c) Find the joint pdf of X and (X +Y)
The x and the y variable in the table below are correlated. Determine the 'R' value, and then determine the regression equation.
calculate the z-test for sample 100 sample mean 3.4 population mean 3.67 and standard deviation of
lipitor is a cholesterol reducing drug. in clinical trials 94 subjects were treated with the drug and 200 were given a
What is the probability that sara will die in her 60th year? using this probability and the $50,000 death benefits, what is the expected loss?
A person purchases a package of 10 ball-point pens which, unknown to the purchaser, contains 4 defective pens. Of the first 2 pens used by the purchaser
you have been called in as a consultant to help the hospital administration determine the best method of applying the
Whizmo Toy Company is interested in creating an MRP schedule for the manufacture of a new toy car. It needs to set up this schedule for the toy car and the following components
A company is conducting a survey of 235 people to measure the level of interest in a new product. Assume that the probability of a randomly selected person's being "very interested" is 0.88
Create a 95% confidence interval for true mean.
How many subjects would you approximately need to reduce the length of the 95% confidence interval to 2 units?
Find the probability that fewer than 5 are satisfied with the airlines. (c) Find the probability that 8 or more are satisfied with the airlines.
In a study designed to test the effectiveness of acupuncture for treating migraine, 142 subjects were treated with acupuncture and 80 subjects were given a sham treatment. The numbers of migraine attacks for the acupuncture treatment group had a m..
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