A simple random sample of 90 items from a population with = 7 resulted in a

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A simple random sample of 90 items from a population with σ = 7 resulted in a sample mean of 38.

If required, 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 _____

Related Book For answer-question

Introduction to Business Statistics

ISBN: 978-1111524081

7th edition

Authors: Ronald M. Weiers

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Posted Date: Jan 12, 2022 03:56 AM

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A simple random sample of 90 items from a population with = 7 resulted in a

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Answer Solution Given 38 Sample mean o 7 Sample standard deviation D n 60 Samp... View the full answer

Introduction to Business Statistics

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