Hello, I would like to check my work. I used invNorm on my calculator. Is there an excel formula? Can you please explain how to solve this in detail? Thank you! You want to obtain a sample to estimate a population mean age of the incoming fall term transfer students. Based on previous evidence, you believe the population standard deviation is approximately 6.5. You would like to be 90% confident that your estimate is within 2 of the true population mean. How large of a sample size is required? n = Use technology to find z-score. Give your answer in whole people. Make sure you use the correct rounding rule for samples size.

Hello, I would like to check my work. I used invNorm on my calculator. Is there an excel formula? Can you please explain how to solve this in detail? Thank you! You want to obtain a sample to estimate a population mean age of the incoming fall term transfer students. Based on previous evidence, you believe the population standard deviation is approximately 6.5. You would like to be 90% confident that your estimate is within 2 of the true population mean. How large of a sample size is required? n = Use technology to find z-score. Give your answer in whole people. Make sure you use the correct rounding rule for samples size.

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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Question

Hello, I would like to check my work. I used invNorm on my calculator. Is there an excel formula? Can you please explain how to solve this in detail? Thank you!

You want to obtain a sample to estimate a population mean age of the incoming fall term transfer students. Based on previous evidence, you believe the population standard deviation is approximately 6.5. You would like to be 90% confident that your estimate is within 2 of the true population mean. How large of a sample size is required?

n =

Use technology to find z-score.
Give your answer in whole people.
Make sure you use the correct rounding rule for samples size.

Definition Definition Number of subjects or observations included in a study. A large sample size typically provides more reliable results and better representation of the population. As sample size and width of confidence interval are inversely related, if the sample size is increased, the width of the confidence interval decreases.

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