A researcher is interested in the amount of sleep an individual receives after consuming a sleeping aid (Melatonin, Valerian root, and Placebo). The researcher randomly selects individuals into either group. However, some individuals drop out of the study which results in unequal sample sizes. MelatoninValerianPlacebo n=6n=10n=4N=20M=14M=13M=9G=250T=84T=130T=36ΣX2=3377SS=60SS=90SS=37 A. Using symbols, state the hypotheses for a two-tailed test with α=0.05. B. Locate the critical region. In doing so, determine the degrees of freedom values.

A: Null Hypothesis: H0:μ1=μ2=μ3 Alternative Hypothesis: H1: At least two μi's are different.

Answered: A researcher is interested in the…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

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A researcher is interested in the amount of sleep an individual receives after consuming a sleeping aid (Melatonin, Valerian root, and Placebo). The researcher randomly selects individuals into either group. However, some individuals drop out of the study which results in unequal sample sizes.

Melatonin	Valerian	Placebo
n=6	n=10	n=4	N=20
M=14	M=13	M=9	G=250
T=84	T=130	T=36	ΣX²=3377
SS=60	SS=90	SS=37

A. Using symbols, state the hypotheses for a two-tailed test with α=0.05.

B. Locate the critical region. In doing so, determine the degrees of freedom values.

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