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Suppose that the heights of the individuals in a certain population have a normal distribution for which the value of the mean 0 is unknown and the standard deviation is 2 inches. Suppose also that the prior distribution of (J is a normal distribution for which the mean is 68 inches and the standard deviation is 1 inch. Suppose finally that ten people are selected at random from the population. and that their average height is found to be 69.5 inches.
(a) Jf the squared error loss function is used, what is the Bayes estimate of O?
(b) If the absolute error loss function is used, what is the Bayes estimate of O?
according to an airline a particular flight is on time 95 of the time. suppose 10 flights are randomly selected and the
According to a recent survey of 1,200 people, 61% feel that the president is doing an acceptable job. We are interested in the population proportion of people.
Use a calculator with mean and sample standard deviation keys to find the sample mean startup cost x and sample standard deviation
Two tanks A and B, each of volume V, are filled with water at time t=0. For t > 0, volume v of solution containing mass m of solute flows into tank A per second; mixture flows from tank A to tank B at the same rate and mixture flows away from tank..
Using the ten sample-mean values, estimate the mean of the population and the variance of x .
The following data were obtained from a duplicated experiment where the response. y was the breaking strength of a fiber and A, B, and C are the coded
You are probably not surprised to learn that men are generally taller than women, but what does the greater standard deviation for mens heights indicate?
In studying the performance of the comapany's stock investments over the past year, the research manager of a mutual fund company finds that only 43% of the stocks returned more than the rate that had been expected at the beginning of the year.
in 2009 the number of feral quaker parrots living in austin was 250. in 1992 there were only 15 feral quaker parrots.
with very few degrees of freedom the test statisticselect onea. needs to be more extreme to reject the null
The Reliable Computer Co. is considering purchasing CPU chips from one of two different suppliers to use in the production of personal computers.
Find out the mean number of letters that will arrive in two days.
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