STATISTICS AND PROBABILITY (PLEASE SHOW your COMPLETE & CLEAR solutions) RATE WILL BE GIVENDETAILED PLEASE. NO SHORTCUTThe following is a list of 20 scores of a pre-board examination of Certified Public Accountant (CPA) reviews in Taxation:7081619366836890919484858985748372908488a. Find the 95% confidence interval of the population mean.b. Find the margin of error using 95% level of confidence. (Round to the nearest hundredths)c. What is the point estimate of the mean scores?

The following is a list of 20 scores is 70 81 61 93 66 83 68 90 91 94 84 85 89 85 74 83 72 90…

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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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STATISTICS AND PROBABILITY (PLEASE SHOW your COMPLETE & CLEAR solutions) RATE WILL BE GIVEN

DETAILED PLEASE. NO SHORTCUT

The following is a list of 20 scores of a pre-board examination of Certified Public Accountant (CPA) reviews in Taxation:

70	81	61	93	66	83	68	90	91	94
84	85	89	85	74	83	72	90	84	88

a. Find the 95% confidence interval of the population mean.

b. Find the margin of error using 95% level of confidence. (Round to the nearest hundredths)

c. What is the point estimate of the mean scores?

Definition Definition Measure of central tendency that is the average of a given data set. The mean value is evaluated as the quotient of the sum of all observations by the sample size. The mean, in contrast to a median, is affected by extreme values. Very large or very small values can distract the mean from the center of the data. Arithmetic mean: The most common type of mean is the arithmetic mean. It is evaluated using the formula: μ = 1 N ∑ i = 1 N x i Other types of means are the geometric mean, logarithmic mean, and harmonic mean. Geometric mean: The nth root of the product of n observations from a data set is defined as the geometric mean of the set: G = x 1 x 2 ... x n n Logarithmic mean: The difference of the natural logarithms of the two numbers, divided by the difference between the numbers is the logarithmic mean of the two numbers. The logarithmic mean is used particularly in heat transfer and mass transfer. ln x 2 − ln x 1 x 2 − x 1 Harmonic mean: The inverse of the arithmetic mean of the inverses of all the numbers in a data set is the harmonic mean of the data. 1 1 x 1 + 1 x 2 + ...

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