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Question: An article in the Los Angeles Times (latimesblogs.latimes.com/pardonourdust/) quoted from the National Association of Realtors that "we now sell our homes and move an average of every six years." Suppose that the average time spent living in a house prior to selling it for a random sample of 400 recent home sellers was 6.18 years and the sample standard deviation was 2.87 years.
a. What is the point estimate of the corresponding population mean?
b. Construct a 98% confidence interval for the average time spent living in a house prior to selling it for all home owners. What is the margin of error for this estimate?
We are interested in testing to find out whether the variance of the population is vitally more than 0.003
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Sketch the distributions involved, and (c) explain your answer to someone who is familiar with the t test for a single sample but not with the t test for independent means.
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The next problem will be to convert these populations into pizzas sold by Lotto Pizza. Your consulting firm has already been employed to survey the population and determine the expected number of pizzas that will be purchased in both formats of op..
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consider the probability function. give your answers correct to two decimal places. rx 0.2 for x 0 1 2 3 4 a find the
1.suppose we have a loaded die which gives the outcomes 1 through 6 according to the probability distributionnbspnote
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