Answered: Use technology to help you test the…

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

Use technology to help you test the claim about the population mean,

μ,

at the given level of significance,

α,

using the given sample statistics. Assume the population is normally distributed.

Claim:

μ>1300;

α=0.09;

σ=207.09.

Sample statistics:

x=1326.58,

n=275

Identify the null and alternative hypotheses. Choose the correct answer below.

H0:

μ≥1326.58

Ha:

μ<1326.58

H0:

μ≤1300

Ha:

μ>1300

H0:

μ≥1300

Ha:

μ<1300

H0:

μ≤1326.58

Ha:

μ>1326.58

H0:

μ>1326.58

Ha:

μ≤1326.58

H0:

μ>1300

Ha:

μ≤1300

Click to select your answer and then click Check Answer.

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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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