Answered: A study was conducted on students from…

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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A study was conducted on students from a particular high school over the last 8 years. The following information was found regarding standardized tests used for college admittance. Scores on the SAT test are normally distributed with a mean of 1115 and a standard deviation of 206. Scores on the ACT test are normally distributed with a mean of 23 and a standard deviation of 5. It is assumed that the two tests measure the same aptitude, but use different scales.

Find the SAT score that is the 56-percentile.
SAT score =
Round answer to 1 decimal place.

Find the ACT score that is the 56-percentile.
ACT score =
Round answer to 1 decimal place.

If a student gets an SAT score of 1321, find their equivalent ACT score. Go out at least 5 decimal places between steps. Round answer to 1 decimal place.
ACT score =

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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