Fundamentals of Statistics (5th Edition)

5th Edition

ISBN: 9780134508306

Author: Michael Sullivan III

Publisher: PEARSON

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Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.

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Chapter B.2, Problem 11AYU

NW 11. pH of Rain The following data represent the pH of rain for a random sample of 12 rain dates in Tucker County, West Virginia. A normal probability plot suggests the data could come from a population that is normally distributed. A boxplot indicates there are no outliers. In Problem 31 from Section 9.2, we found that s = 0.319. Construct and interpret a 95% confidence interval for the standard deviation pH of rainwater in Tucker County, West Virginia.

Chapter B.2, Problem 11AYU, NW 11. pH of Rain The following data represent the pH of rain for a random sample of 12 rain dates

Source: National Atmospheric Deposition Program

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 B.2, Problem 10AYU

Chapter B.2, Problem 12AYU

Chapter B.2 Solutions

Fundamentals of Statistics (5th Edition)

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Solution Summary: The author explains the 95% confidence interval for the standard deviation of pH of rainwater in Tucker County, West Virginia.

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Chapter B.2 Solutions