Answered: . The increased use of wood for…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Question

2. The increased use of wood for residential heating has caused some concern over the pollutants
and irritants released into the air. In one reported study in the northwestern United States, the
total suspended particulates (TSP) in nine air samples had a mean of 72. Assuming that the TSP is
normally distributed with a standard deviation of 23, estimate the upper limit of the true mean TSP
in a 95% confidence interval.

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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