Answered: The Precision Scientific Instrument…

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 Precision Scientific Instrument Company manufactures thermometers that are supposed to give readings of 0 degrees at the freezing point of water.

Assume that the mean reading is 0 degrees and the standard deviation of the readings is 1.00 degree. Also assume that the frequency distribution of errors closely resembles the normal distribution. A thermometer is randomly selected and tested.

Find the temperature reading corresponding to the given information.

Find P₂₃, the 23rd Percentile.

Group of answer choices

0.591 degrees

.409 degrees

-0.74 degrees

0.74 degrees

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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