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Understanding Basic Statistics 6th Edition by Charles Henry Brase,Corrinne Pellillo Brase
Edition 6ISBN: 978-1111827021Understanding Basic Statistics 6th Edition by Charles Henry Brase,Corrinne Pellillo Brase
Edition 6ISBN: 978-1111827021 Exercise 15
Basic Computation: Confidence Interval A random sample of size 81 has sample mean 20 and sample standard deviation 3.
(a) Check Requirements Is it appropriate to use a student's t distribution to compute a confidence interval for the population mean Explain.
(b) Find a 95% confidence interval for .
(c) Interpretation Explain the meaning of the confidence interval you computed.
(a) Check Requirements Is it appropriate to use a student's t distribution to compute a confidence interval for the population mean Explain.
(b) Find a 95% confidence interval for .
(c) Interpretation Explain the meaning of the confidence interval you computed.
Explanation
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Verified
(a) We have an x distribution from which...
Understanding Basic Statistics 6th Edition by Charles Henry Brase,Corrinne Pellillo Brase
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