Bundle: Understandable Statistics: Concepts And Methods, 12th + Webassign, Single-term Printed Access Card

12th Edition

ISBN: 9781337605199

Author: Charles Henry Brase, Corrinne Pellillo Brase

Publisher: Brooks Cole

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Chapter 8.1, Problem 4P

Statistical Literacy If we reject the null hypothesis, does this mean that we have proved it to be false beyond all doubt? Explain your answer.

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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Chapter 8.1, Problem 3P

Chapter 8.1, Problem 5P

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Chapter 8 Solutions

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Statistical Literacy If we reject the null hypothesis, does this mean that we have proved it to be false beyond all doubt? Explain your answer.

Solution Summary: The author explains that the statistical hypothesis test does not prove any statements claimed to be a fact in the test, it just provides the evidences.

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Chapter 8 Solutions