Basic Business Statistics, Student Value Edition

14th Edition

ISBN: 9780134685113

Author: Mark L. Berenson, David M. Levine, David F. Stephan, Kathryn Szabat

Publisher: PEARSON

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Textbook Question

Chapter 10, Problem 39PS

The following information is available is for two sample selected from independent normally distributed populations:

Population A: n 1 = 25 S 1 2 = 161.9

Population B: n 2 = 25 S 2 2 = 133.7

What is the value of F STAT if you are testing the null hypothesis H 0 : σ 1 2 = σ 2 2 ?

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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Chapter 10, Problem 38PS

Chapter 10, Problem 40PS

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Chapter 10 Solutions

Basic Business Statistics, Student Value Edition

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The following information is available is for two sample selected from independent normally distributed populations: Population A: n 1 = 25 S 1 2 = 161.9 Population B: n 2 = 25 S 2 2 = 133.7 What is the value of F STAT if you are testing the null hypothesis H 0 : σ 1 2 = σ 2 2 ?

Solution Summary: The author explains that the value of F - statistic is 1.2109.

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Chapter 10 Solutions