Answered: Assume that the measurements are…

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

The resistances in ohms for a random sample of 10 resistors manufactured by a company are recorded
as follows:

990,961,920 ,867, 970
927, 920 ,1021, 932 ,1041

Assume that the measurements are approximately normally distributed.
A. Find a 95% prediction interval on the next resistor to be manufactured.
B. Find a 95% confidence interval on the standard deviation of the resistances

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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