A simple random sample of 60 items from a population with σ = 8 resulted in a sample mean of 36. (Round your answers to two decimal places.) (a) Provide a 90% confidence interval for the population mean. ________ to __________ (b) Provide a 95% confidence interval for the population mean. ________ to _________ (c) Provide a 99% confidence interval for the population mean. ________ to ________

A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
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A simple random sample of 60 items from a population with
σ = 8
resulted in a sample mean of 36. (Round your answers to two decimal places.)
(a)
Provide a 90% confidence interval for the population mean.
________ to __________
(b)
Provide a 95% confidence interval for the population mean.
________ to _________
(c)
Provide a 99% confidence interval for the population mean.
________ to ________
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