Answered: For this study, we should use…

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

Is a statistics class' delivery type a factor in how well students do on the final exam? The table below shows the average percent on final exams from several randomly selected classes that used the different delivery types.

Face-to-Face	Hybrid	Online
77	90	76
95	80	58
58	100	65
57	100	70
87	98	84
64	98	98
57	82	74
57	95	60
	72	80

Assume that all distributions are normal, the three population standard deviations are all the same, and the data was collected independently and randomly. Use a level of significance of α=0.05α=0.05.

H0: μ1=μ2=μ3H0: μ1=μ2=μ3
Ha:Ha: At least two of the means differ from each other.

For this study, we should use
The test-statistic for this data = (Please show your answer to 4 decimal places.)
The p-value for this sample = (Please show your answer to 4 decimal places.)

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