Answered: Scores for a common standardized…

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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Scores for a common standardized college aptitude test are normally distributed with a mean of 483 and a standard deviation of 96. randomly selected men are giving a test preparation course before taking this test so much for sake of argument that the test is no effect —one of the men is randomly selected by the probability that his score is at least 520.4 — if 19 of the men are randomly selected find the probability that the mean score is at least 520.4 enter your answer as a number accurate to what does replaces note answers obtain using exact z score or z scores rounded to three different places are acceptable.

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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