Q6From a population that is not normally distributed and whose standard deviation is not known, a sample of 6 items is selected to develop an interval estimate for the mean of the population. Question 6 options: The sample size is too small to develop an interval estimate. The t distribution with 6 degrees of freedom must be used. The normal distribution can be used. The t distribution with 5 degrees of freedom must be used.

Answered: Q6 From a population that is not…

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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From a population that is not normally distributed and whose standard deviation is not known, a sample of 6 items is selected to develop an interval estimate for the mean of the population.

Question 6 options:

	The sample size is too small to develop an interval estimate.
	The t distribution with 6 degrees of freedom must be used.
	The normal distribution can be used.
	The t distribution with 5 degrees of freedom must be used.

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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