Answered: Q1: a. What is the best point…

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

Q1:

a. What is the best point estimate of the population proportion?
b. What is the best point estimate of the population mean ?
c.what is the best point estimate of the population standard deviation?

Q2: What are some similarities and differences between standard normal distribution and t- distribution?

Q3:If you increase sample size, the width of confidence intervals will decrease. Why is that? Explain.

Q4: For a given standard error, higher confidence levels produce wider confidence intervals. Why is that? Explain

Q5:

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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