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If the independent r.v.'s Xj, j = 1, . . . , r have the Geometric distribution with parameter p, show that the r.v. X = X1 + · · · + Xr has the Negative Binomial distribution with parameters r and p.
you are the manager of a restaurant that delivers to college dormitory rooms. you have just changed delivery process in
a box contains 3 marbles 1 red 1 green 1 blue. consider an experiment that consists of taking 1 marble from the box
suppose a new type of artificial heart has been developed. the heart has three moving parts that are subject to
suppose a simple random sample of size 40 is selected from a population with 12. find the value of the standard error
Part I checks your understanding of key concepts from Jackson and Trochim & Donnelly.
Assume that sigma = 60, choose an alpha level, and perform a hypothesis test to determine whether this is good evidence to conclude that the mean score for all young men is less than 275.
the lifetime of a mechanical assembly in a vibration test is exponentially distributed with a mean of 400 hours.a what
a) Find the marginal density of Y. b) Find E(X) HINT: What is E (X|Y=y) ?
What is the probability that fewer than 59 CEOs agree that it is attractive to have a joint venture to increase global competitiveness and what is the probability that between 53 and 61 (inclusive) CEOs agree with that assertion?
How much money do winners go home with from the television quiz show Jeopardy? To determine an answer, a random sample of winners was drawn and the amount of money each won was recorded and listed below
Determine the mean, median and mode of those data. Make sure you show your hand computeed work. Is there any indication from this group of data that the new policy holder may lean toward younger ages?
question random sampling from two normal populations produced the following resultsx1
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