Bundle: Understanding Basic Statistics, Loose-leaf Version, 7th + WebAssign Printed Access Card for Brase/Brase's Understanding Basic Statistics, ... for Peck's Statistics: Learning from Data

7th Edition

ISBN: 9781305787612

Author: Charles Henry Brase, Corrinne Pellillo Brase

Publisher: Cengage Learning

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Textbook Question

Chapter 7, Problem 23CR

Basic Computation: p ^ Distribution Suppose we have a binomial distribution with n = 24 trials and probability of success p = 0.4 on each trial. The sample proportion of successes is p ^ = r / n .

(a) Is it appropriate to approximate the p distribution with a normal distribution? Explain.

(b) What are the values of μ p ^ and σ p ^ .?

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 7, Problem 22CR

Chapter 7, Problem 24CR

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Chapter 7 Solutions

Bundle: Understanding Basic Statistics, Loose-leaf Version, 7th + WebAssign Printed Access Card for Brase/Brase's Understanding Basic Statistics, ... for Peck's Statistics: Learning from Data

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