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Suppose that a sample size 58 is drawn from a population with mean 30 and standard deviation 51, find the valve, the mean of the distribution of sample means.
Explain what it means when two variables have a negative association. What is an example of two variables that would have no association?
If ACAC and BCBC are the events complementary to AA and BB, and p(A|B)>p(A)p(A|B)>p(A) and p(BC)>0p(BC)>0, prove that p(AC|BC)>p(AC)p(AC|BC)>p(AC). Been trying to get my head around this but kind of stuck and any help would be much appreciated.
customers arrive at a two-chair shoeshin stand at the rate of 10 per hour. the average duration of a shoeshine is 6
What fraction of kindergarten kids should the company expect to be less than 3 feet tall?- In what height interval should the company expect to find the middle 80% of kindergarteners?
owner of a store that sells cds wants to estimate the mean amount of time a customer remains in the store. a random
Suppose the horses in a large stable have a mean weight of 1464 lbs, and a standard deviation of 111. What is the probability that the mean weight of the sample horses would differ from the population mean by less than 11 lbs if 34 horses are samp..
Would you be willing to provide an example of both methods (step by step) described in your document for determining the forecast based upon the two different methods. Maybe just for one single city.
you plan to conduct a survey to find what proportion of the workforce has two or more jobs. you decide on the 99
a penny collection contains twelve 1967 pennies seven 1968 pennies and eleven 1971 pennies. if you are to pick some
A toy manufacturer wants to see how long, on average, a new toy captures children's attention. He tests 10 children selected at random and finds that their mean attention span is 33 minutes with a standard deviation of 6 minutes.
a random sample of size n is to be used to test the null hypothesis that the parameter theta of an exponential
What is the probability we select a Human Ecology student?- What is the probability that we select a firstborn student?
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