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Name: The mean tax-return preparation fee H&R Block charged retail customers
Uploaded: 2024-03-20T07:07:12.000Z
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Description: The mean tax-return preparation fee H&R Block charged retail customers in 2012 was $183 (The Wall Street Journal, March 7, 2012). Use this price as the population mean and assume the population standard deviation of preparation fees is $50.Round your

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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The mean tax-return preparation fee H&R Block charged retail customers in 2012 was $183 (The Wall Street Journal, March 7, 2012). Use this price as the population mean and assume the population standard deviation of preparation fees is $50.Round your answers to four decimal places.a. What is the probability that the mean price for a sample of 30 H&R Block retail customers is within $8 of the population mean?b. What is the probability that the mean price for a sample of 50 H&R Block retail customers is within $8 of the population mean?c. What is the probability that the mean price for a sample of 100 H&R Block retail customers is within $8 of the population mean?

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