SOLUTION: A random sample of n = 36 observations has a mean x = 28.7 and a standard deviation s = 3.8. (You may need to use the appropriate appendix table or technology to answer this ques
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Question 1207896: A random sample of n = 36 observations has a mean x = 28.7 and a standard deviation s = 3.8. (You may need to use the appropriate appendix table or technology to answer this question)
(a) Find a 90% lower confidence bound for the population mean 𝜇. (Round your answer to two decimal places.)
(b) How many observations do you need to estimate 𝜇 to within 0.6, with probability equal to 0.95? (Round your answer up to the nearest whole number.)
___________________ observations Answer by ikleyn(52778) (Show Source):
