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1.)What is the numeric response variable? 2.)What is the categorical factor variable?   3.)State the Null and Alternative Hypotheses in context (words)

1.)What is the numeric response variable? 2.)What is the categorical factor variable?   3.)State the Null and Alternative Hypotheses in context (words)

MATLAB: An Introduction with Applications
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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A fourth grade class is studying the environment. One of their projects is to grow bean plants in 3 different soils.  100 plants each are planted in soil mixed with dryer lint, soil mixed with fertilizer and soil with nothing added.  At the end of the growing period, 5 plants from each soil type were measured (in inches) producing the data in the table below.  We will test the claim that there is no difference in mean bean plant height among each of the 3 soil types using a 5% significance level.  (Assume that independent samples were drawn from normal populations with equal variances.)

Soil with Dryer Lint Soil with Fertilizer Plain Soil
23 18 21
29 19 26
25 23 27
24 19 27
19 14 31

1.)What is the numeric response variable?

2.)What is the categorical factor variable?
 
3.)State the Null and Alternative Hypotheses in context (words).
 
 
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