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1. The statistician Piggy has to wait an amount of time T0 at the post office on an occasion when she is in a great hurry. In order to investigate whether or not chance makes her wait particularly long when she is in a hurry, she checks how many visits she makes to the post office until she has to wait longer than the first time. Formally, let T1, T2, . . . be the successive waiting times and N be the number of times until some Tk > T0, that is, {N = k} = {Tj ≤ T0, 1 ≤ j k, Tk > T0}. What is the distribution of N under the assumption that {Tn, n ≥ 0} are i.i.d. continuous random variables? What can be said about E N ?
2. Let X1, X2, . . . , Xn be independent, continuous random variables with common distribution function F(x), and consider the order statistic (X(1), X(2), . . . , X(n)). Compute E(F (X(n)) - F (X(1))).
For these data, a 99% confidence interval for true mean weight loss by all patients attending the clinic would have the limits (?, ?).
simple linear regression equation.a stock market analyst at the newyork stock exchange was interested in the
a process capability study is conducted for a mold. you are tasked to evaluate if the process will yield a greater than
1. Let X and Y be independent chi-square random variables with 14 and 5 degrees of freedom, respectively. Find
A Department of Trasporta repot about air travel found that nationwide, 76% of all flights are on time. What is the probablity that you will have have excatly 80 flights on time?
What is the probability that both funds will exceed their respective benchmarks and the bookies give 2:1 odds that the NFC will win the Super bowl. What is the probability that the market will rise for the upcoming year
What is the correlation between x3 and x2 and what is the pdf of x?
A new speed limit will be initiated such that approximately 10% of vehicles will be over the speed limit. What is the new speed limit based on this criterion? In what way do you think the actual distribution of speeds differs from a normal distribu..
Critically discuss the mean number of children per household for these families? Round your answer to at least one decimal place.
What type of solution do you get for a quadratic equation where D
What is the probability that a simple random sample of automobile insurance polocies will have a sample mean within 25.
probability using pareto chart.1. use the pareto chart which shows the results of a survey in which 500 adults were
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