According to the Internal Revenue Service, the proportion of federal tax returns for which no tax was paid was p=0.326.As part of a tax audit, tax officials draw a simple sample of n=130 tax returns. Use Cumulative Normal Distribution Table as needed. Round your answers to at least four decimal places if necessary. 1.(a)What is the probability that the sample proportion of tax returns for which no tax was paid is less than 0.29?The probability that the sample proportion of tax returns for which no tax was paid is less than 0.29 is (b) What is the probability that the sample proportion of tax returns for which no tax was paid is between 0.35 and 0.41? The probability that the sample proportion of tax returns for which no tax was paid is between 0.35 and 0.41 is (c)What is the probability that the sample proportion of tax returns for which no tax was paid is greater than 0.32? The probability that the sample proportion of tax returns for which no tax was paid is greater than 0.32 is (d)Would it be unusual if the sample proportion of tax returns for which no tax was paid was less than 0.24 ? It ▼(Choose one) be unusual if the sample proportion of tax returns for which no tax was paid was less than 0.24, since the probability is

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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Pay your taxes: According to the Internal Revenue Service, the proportion of federal tax returns for which no tax was paid was p=0.326.As part of a tax audit, tax officials draw a simple sample of n=130 tax returns. Use Cumulative Normal Distribution Table as needed. Round your answers to at least four decimal places if necessary.

1.(a)What is the probability that the sample proportion of tax returns for which no tax was paid is less than 0.29?The probability that the sample proportion of tax returns for which no tax was paid is less than 0.29 is

(b) What is the probability that the sample proportion of tax returns for which no tax was paid is between 0.35 and 0.41?

The probability that the sample proportion of tax returns for which no tax was paid is between 0.35 and 0.41 is

(c)What is the probability that the sample proportion of tax returns for which no tax was paid is greater than 0.32?

The probability that the sample proportion of tax returns for which no tax was paid is greater than 0.32 is

(d)Would it be unusual if the sample proportion of tax returns for which no tax was paid was less than 0.24 ?

It ▼(Choose one) be unusual if the sample proportion of tax returns for which no tax was paid was less than 0.24, since the probability is

Features Features Normal distribution is characterized by two parameters, mean (µ) and standard deviation (σ). When graphed, the mean represents the center of the bell curve and the graph is perfectly symmetric about the center. The mean, median, and mode are all equal for a normal distribution. The standard deviation measures the data's spread from the center. The higher the standard deviation, the more the data is spread out and the flatter the bell curve looks. Variance is another commonly used measure of the spread of the distribution and is equal to the square of the standard deviation.

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