Answered: Scores on an iq test are normally…

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 on an iq test are normally distributed. A sample of 6 in scores had standard deviations s=7 A … constrict a 95% confidence interval for population standard deviation.. round the answer to at least two decimal places B… the developer of the test claims that the population standard deviation = 20. Does this confidence interval contradict this claim explain A 95% confidence interval for the population standard deviation are Yes or no because the valve 20 is or not contained in the confidence interval

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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