A random sample of size 25 is to be taken from a population that normally distributed with mean 60 and standard deviation of 10. The mean sample of observation in our sample is to be computed. The sampling distribution of x ___A. is Normal with mean 60 and standard deviation 2. B. has unknown shape with mean 60 and standard deviation of 2 C. is approximately Normal with mean 60 and standard deviation 10. D. is Normal with mean 60 and standard deviation 10.

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Answered: A random sample of size 25 is to be…

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 random sample of size 25 is to be taken from a population that normally distributed with mean 60 and standard deviation of 10. The mean sample of observation in our sample is to be computed. The sampling distribution of x ___

is Normal with mean 60 and standard deviation 2.

has unknown shape with mean 60 and standard deviation of 2

is approximately Normal with mean 60 and standard deviation 10.

is Normal with mean 60 and standard deviation 10.

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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