Answered: For each of the following, Circle to…

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

For each of the following, Circle to indicate whether it is True or False. .

True False The standard normal distribution is a normal distribution in which both the mean and standard deviation have a value of 0.

True False If either form of test is valid, using a non-parametric test usually gives you more statistical power than analyzing the data with a parametric test.

True False The central limit theorem states that the sum (or mean) of a large number of variables will follow a normal distribution.

True False When the t-statistic that you calculate from your data is negative and the absolute value is larger than the critical value, then you will reject the null hypothesis.

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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