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Let four random variables X1, X2, X3, X4 have common mean m1=m2=m3=m4= 5 and common variance (sigma 1)^2= (sigma 2)^2= (sigma 3)^2= (sigma4)^2= 6 and common correlation coefficient p(sub ij)= .1, i does not equal j. Determine the mean and the variance of Y=X1 +X2 + X3 + X4.
a company sells lamps of which 15 are defective.a what is the probability that in a box of 14 lamps there will be at
Describe in some detail how a hypothesis test could be used in some real world context such as business, politics, church, Girl Scouts, school, or perhaps your place of work.
When 40 people used the Weight Watchers diet for one year, their weight losses had a standard deviation of 4.9 lb (based on data from "Comparision of the Atkins, Ornish, Weight Watchers, abd Zone Diets for Weight Loss and Heart Disease Reduction, ..
The paired data below consist of the test scores of 6 randomly selected students and the number of hours they studied for the test.
A manufacturer has a maximum of 240, 360, and 180 kilograms of wood, plastic and steel available. The company produces two products, A and B. Each unit of A requires 1, 3 and 2 kilograms of wood, plastic and steel respectively;
specimens of blood from 10 different animals were analyzed for blood count say y in units of 100 and packed cell volume
the number of hybrid cars that have be requested for rental from a car rental office during a 50 day sample period is
One minute follows a Poisson distribution with mean of 1.8. In a 10- minute span of time, what is the probability that the team scores exactly 25 points.
assume the reading on thermometers are normally distributed with a mean of 0 celsius and a standard deviation of 1.00
Tthen calculate the 95% and 99% CIs for the proportion of all female Hispanic drivers in Boston who wear seatbelts. Why is the 99% CI wider than the 95% CI?
an american roulette wheel has 38 slots 18 are red 18 are black and 2 are green. let r be the number of spins until you
Fixed construction cost for upper-deck area is evaluated to be $1,500,000, with variable cost of $50,000 for each box constructed. Determine the breakeven point for number of luxury boxes in new stadium?
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