Answered: A wider standard curve is due 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

.A wider standard curve is due to:

Lower mean
Higher standard deviation
Lower standard deviation
Higher mean

Which of the following is the standard deviation of the standard normal distribution?

1
1/2
0
None of these

This refers to measurement that describes a sample.

Statistic
Mean
Parameter
Statistics

Consider a positive number a. Which respect to the standard normal distribution, which of the following is true?

None of these
P(z<a) increases as a increases.
P(z>a) decreases as a decreases.
P(z>a) increases as a increases.

Which of the following is true about the standard deviation of a sampling distribution of means derived from a population as the sample size gets larger?

It becomes larger as well.
None of these
It becomes smaller.
It depends on the value of the population mean

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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