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Suppose that Y1, Y2, Y3, and Y4 have a multinomial distribution with n trials and probabilities p1, p2, p3, and p4 for the four cells. Just as in the binomial case, any linear combination of Y1, Y2, Y3, and Y4 will be approximately normally distributed for large n. a) Determine the variance of Y1-Y2. [Hint: Recall that the random variables Yi are dependent.] b) A study of attitudes among residents of Florida with regard to policies for handling nuisance alligators in urban areas showed the following. Among 500 people sampled and presented with four management choices, 6% said the alligators should be completely protected, 16% said they should be destroyed by wildlife officers, 52% said they should be relocated live, and 26% said that a regulated commercial harvest should be allowed. Estimate the difference between the population proportion favoring complete protection and the population proportion favoring destruction by wildlife officers. Use a confidence coefficient of .95.
For a theater play, the school sold 120 blue tickets for students and 80 red tickets for adults. What percent of the tickets were sold to students?
Out of 5000 policies for cell phones, a company received 585 claims. The average amount paid on the claims was $80. If the annual cost of the policy was $48, what was a customer's expected value of the cell phone insurance policy?
Evaluate the Riemann sum for f(x)=3-1x/2 x is greater than or equal to 2 and less than or equal to 14 with six subintervals, taking the sample points to be left end- points.
1. in management how important is it that you learn to use mathematics to solve problems? how valuable is an mba degree
Using the result from above, calculate the first few terms of the expansion of t expanded on [1,3]. Plot this result on [-1,5].
If an open box has a square base and a volume of 106 in.3 and is constructed from a tin sheet, find the dimensions of the box, assuming a minimum amount of material is used in its construction.
let x denote the number of ticketed airline passengers denied a flight because of overbooking. suppose that x is a random variable for which p(x) = c(5-x) for x = 0,1,2,3,4. find the numerical value of c and then compute P(x>0)
Find the equation of the rational function that passes through (0,2), has a Horizontal Asymptote at y=3, a hole at x=1 and only one Vertical Asymptote at x=-2.
Find the volume of a solid that is generated by rotating the region formed by the graphs of y=x^2, y= 2, and x = 0 about the y-axis?
Make a meaningful example illustrating Project Evaluation and Review Technique (PERT). Explain all details. Draw the graphs involved. Use reasonable number of tasks.
The cost of paint used in a redecorating job is $65.70. This is a reduction from its original cost of $82.13. What is the percent decrease in the cost of paint to the nearest percent?
A man rows a boat 350 feet upstream against a constant current in 10 minutes. He then rows 275 feet downstream (with the same current) in 5 minutes. Find the speed of the current and the equivalent rate at which he can row in still water.
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