Answered: At the 5% significance level, what is…

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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This is a practice exam. I would like to know how to solve using excel or megastat

. Given the following information obtained from three normally distributed populations, construct an ANOVA table. (Round intermediate calculations to at least 4 decimal places. Round "SS" to 2 decimal places, "MS" to 4 decimal places, and "F" to 3 decimal places.)

SSTR = 182.4; SSE = 2,776.1; c = 3; n₁ = n₂ = n₃ = 9

Anova

Source of variation SS df MS f pvalue

Between Groups 0.466

Within Groups

Total 0.00 0

b. At the 5% significance level, what is the conclusion to the ANOVA test of mean differences?

multiple choice

Do not reject H₀; we cannot conclude that some means differ.
Reject H₀; we can conclude that some means differ.
Do not reject H₀; we can conclude that some means differ.
Reject H₀; we cannot conclude that some means differ.

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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