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ISBN: 9780134462455

Author: Mario F. Triola

Publisher: PEARSON

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Chapter 12.1, Problem 9BSC

In Exercises 5-16, use analysis of variance for the indicated test.

9. Female Pulse Rates and Age Using the pulse rates of females from Data Set 1 “Body Data” in Appendix B after they are partitioned into the three age brackets of 18-25, 26-40, and 41-80, we get the following Statdisk display. Using a 0.05 significance level, test the claim that females from the three age brackets have the same mean pulse rate. What do you conclude?

Chapter 12.1, Problem 9BSC, In Exercises 5-16, use analysis of variance for the indicated test. 9. Female Pulse Rates and Age

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 12.1, Problem 8BSC

Chapter 12.1, Problem 10BSC

Chapter 12 Solutions

Elementary Statistics (13th Edition)

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Solution Summary: The author concludes that the pulse rates of females from the three age brackets do not have the same mean pulse rate.

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