Suppose that the time required to complete a 1040R tax form is normal distributed with a mean of 90 minutes and a standard deviation of 20 minutes. Whatproportion of 1040R tax forms will be completed in at most 91 minutes? Round your answer to at least four decimal places.

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Answered: Suppose that the time required to…

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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Suppose that the time required to complete a 1040R tax form is normal distributed with a mean of 90 minutes and a standard deviation of 20 minutes. What proportion of 1040R tax forms will be completed in at most 91 minutes? Round your answer to at least four decimal places.