Answered: Geographer Lalli is interested in…

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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Geographer Lalli is interested in investigating whether there is a difference in average humidity in four different types of soil. To test this hypothesis, he took 10 samples for each type of soil and measured the humidity. Lalli is slippery in statistics and he decided to perform a variance analysis to analyze the data. He had started filling out a variance analysis table but could not complete it.

	Fervic sum	Degrees	Among square sums
Between groups	93,85	xx	xx
Within groups	xx	xx	xx
Whole	290,67	xx

a) Finish filling in the fields that Lalli did not manage to fill in (marked xx)
b) Carry out an appropriate hypothesis test to verify Lalla's hypothesis. What conclusion can he draw (use α = 0.05)? Show all six steps.

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