According to the Internal Revenue Service, the length of time for an individual to complete (learn, prepare copy, assemble, and send) IRS Form 1040 is normally distributed with a mean of 8.66 hours (without any attached schedules). Suppose the standard deviation is 0.9 hours. 1. If one taxpayer is randomly selected, what is the probability that they took more than 8.96 hours to complete form 1040? o What distribution will you use to calculate this probability? N o List the z-scores needed to calculate the result. If there is more than one z-score, separate the values with a comma. o There is a chance that a randomly selected taxpayer took longer than 8.96 hours to complete their tax return. 2. If 52 taxpayers are randomly selected, what is the probability that, on average, they took more than 8.96 hours to complete form 1040? o What distribution will you use to calculate this probability? N o List the z-scores needed to calculate the result. If there is more than one z-score, separate the values with a comma. chance that a random sample of 52 taxpayers took o There is a longer than 8.96 hours to complete their tax returns, on average.

According to the Internal Revenue Service, the length of time for an individual to complete (learn, prepare copy, assemble, and send) IRS Form 1040 is normally distributed with a mean of 8.66 hours (without any attached schedules). Suppose the standard deviation is 0.9 hours. 1. If one taxpayer is randomly selected, what is the probability that they took more than 8.96 hours to complete form 1040? o What distribution will you use to calculate this probability? N o List the z-scores needed to calculate the result. If there is more than one z-score, separate the values with a comma. o There is a chance that a randomly selected taxpayer took longer than 8.96 hours to complete their tax return. 2. If 52 taxpayers are randomly selected, what is the probability that, on average, they took more than 8.96 hours to complete form 1040? o What distribution will you use to calculate this probability? N o List the z-scores needed to calculate the result. If there is more than one z-score, separate the values with a comma. chance that a random sample of 52 taxpayers took o There is a longer than 8.96 hours to complete their tax returns, on average.

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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