Answered: Use the following data to determine if…

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 the following data to determine if there is a significant difference between children at different school levels on how many hours per day, they actually wear their orthodontic appliances. Evaluate using a two-tailed test with .

Primary School	Junior High School	High School
16	9	20
14	13	15
18	14	16
	12	18

Expert Solution

Step 1

Hypothesis:

The null and alternative hypotheses are below;

$\begin{array}{rcl} H_{0} : There is no diference between children at different school levels on actual hours of wearing their orthodontic appliances. \\ H_{1} : There is diference between children at different school levels on actual hours of wearing their orthodontic appliances. \end{array}$

Step-by-step procedure to obtain the ANOVA data using Excel is given below:

In Excel sheet, enter Primary school, Junior High school and High school in one column.
In Data, select Data Analysis and choose ANOVA- Single Factor.
In Input Variable Range, select Primary school, Junior High school and High school.
Click Labels.
Click Ok.

Step 2

Output using the Excel is given below:

Step by step

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