Level of confidence
Given the level of confidence of 95% and population standard deviation of 11, answer the following:
(A) What other information is essential to find out the sample size (n)?
(B) Find out the Maximum Error of the Estimate (E) if n = 90. Show all work.
Expected delivery within 24 Hours
Determine the expected time in minutes before the first buy after the site opens? Provide your answer to four decimal places.
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Given the level of confidence of 95% and population standard deviation of 11, answer the following: What other information is essential to find out the sample size (n)?
Suppose that the probability of a male birth is 0.5 and that the binomial distribution is applicable. Determine the probability that a couple with a) 3 children has at least 2 boys;2)5 children has atleast 2 boys;3)what are corresponding probabili
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A nursing school wants to determine the true mean annual income of its alumni. It randomly samples 120 of its alumni. The annual income was $58,700 with standard deviation of $1,500. Find out a 95% confidence interval for the true mean annual inco
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