Suppose that an accounting firm does a study to determine the time needed to complete one person's tax forms. Itrandomly surveys 200 people. The sample mean is 23.2 hours. There is a known population standard deviation of 6.2 hours. The population distribution is assumed to be normal. Construct a 90% confidence interval for the population mean time to complete the tax forms. a. Calculate the error bound. (Round your answer to two decimal places.)

Suppose that an accounting firm does a study to determine the time needed to complete one person's tax forms. Itrandomly surveys 200 people. The sample mean is 23.2 hours. There is a known population standard deviation of 6.2 hours. The population distribution is assumed to be normal. Construct a 90% confidence interval for the population mean time to complete the tax forms. a. Calculate the error bound. (Round your answer to two decimal places.)

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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