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A node in a communication network receives data packets of variable length. Each packet has a random number of bits that is uniformly distributed over the integers The number of packet arrivals per minute is a Poisson random variable with a mean of 50.
(a) What is the average number of data bits per minute arriving at the node?
(b) What is the variance of the number of data bits per minute arriving at the node?
(a) Let Ni be the number of consecutive days during which component I is responsible for the functioning of the system, for i = 1,2. What is the probability distribution of ?
Standard deviation 0.3 ton. What is the probability that a fully loaded truck of this model is (a) less than 6 tons, (b) more than 7 tons, (c) between 6 and 7 tons?
suppose a sample of 10 observations is taken from a population with a normal distribution. the sample mean is
If you draw one ball from the urn what is the probability that it is blue or white?
some plastic rods are automatically cut into lengths of 6 in. actual lengths are normally distributed about a mean of 6
Determine the critical regions for test in terms of the sample mean, what is the probability of a type II error for this test if the true mean is in fact 195 mg and what impact would reducing the sample size have on the type I and type II errors?
How many treatments are there? What is the total sample size? Is there a significant difference at the 5% Level of significance? Would I accept or reject the null Hypothesis.
Estimate the true proportion of all Americans who are in favor of gun control legislation using a 90% confidence interval.
1. each supplier is rated on a 10-point scale 10 highestfor four different criteria price quality delivery and
Logistic regression is often applied to large financial databases. For example, credit scoring is a method of modeling the influence of predictors on the probability that a consumer is credit worthy. The data archive found under the index at www.s..
a batch of 25 injection-molded parts contains five that have suffered excessive shrinkage. if two parts are selected at
a. Calculate AOQ for p = .01, .02,..., .10. What does this suggest about the value of p for which AOQ is a maximum and the corresponding AOQL?
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