Answered: Why is it that the inequality symbol…

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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Question

Why is it that the inequality symbol used is greater than or equal? Is it not greater than only because we are interested with more than 9? Is it correct or wrong? What is the lower bound and upper bound in calculating the probability using technology? P( the difference is more than 9)= norm cdf (Lower bound= , upper bound = , mean = , standard deviation = )

What is the probability that a sample of Swedish males is
more than 9 cm taller than a sample of Canadian males?
Xsue-X con 29
P(X Swe-Xeon 29) = P(Z > 20144)
Z=
9-6
1,4856
20194
= normaled + (2.0194,00, 0, 1)
=00217

Normal Cdf
Lower Bound:
Upper Bound:
μ: 6
J: 1.4856
OK
=
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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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