An investor is looking at past trends for three plans comparing dividends paid per share. She collects sample data from each plan to compare the average dividends paid per share. Let ? = 0.05. Plan 1 Plan 2 Plan 3 1.28 1.00 0.35 1.55 1.19 1.15 1.86 1.25 0.15 1.95 3.17 1.00 0.75 1.46 0.30 2.68 0.60 0.61 2.03 1.31 1.04 Groups Count Average Variance Plan 1 7 1.728571 0.375514 Plan 2 7 1.425714 0.667762 Plan 3 7 0.657143 0.164724 Source of Variation Sum of Squares df Mean Squares F P F crit Between Groups 4.2709 2 2.1354 5.3033 0.0155 3.5546 Within Groups 7.2480 18 0.4027 Total 11.5189 20 (a) What is the next step in the one-way ANOVA? There is not enough information, so collect more data.Stop, the results were not significant. The Tukey-Kramer post hoc test is not needed. Stop, the results were significant. The Tukey-Kramer post hoc test is not needed.Continue to the Tukey-Kramer post hoc test, as the results were significant. (b) The Tukey-Kramer method uses the formula (xi − xj) ± q MSE 2 1 ni + 1 nj . Using the formula, what is the value of q from the table for this scenario? (Use a table. Round your answer to two decimal places.) (c) The Tukey-Kramer method uses the formula (xi − xj) ± q MSE 2 1 ni + 1 nj . Using the formula, how many intervals need to be calculated for this scenario?

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

An investor is looking at past trends for three plans comparing dividends paid per share. She collects sample data from each plan to compare the average dividends paid per share. Let

? = 0.05.

Plan 1	Plan 2	Plan 3
1.28	1.00	0.35
1.55	1.19	1.15
1.86	1.25	0.15
1.95	3.17	1.00
0.75	1.46	0.30
2.68	0.60	0.61
2.03	1.31	1.04

Groups	Count	Average	Variance
Plan 1	7	1.728571	0.375514
Plan 2	7	1.425714	0.667762
Plan 3	7	0.657143	0.164724

Source of Variation	Sum of Squares	df	Mean Squares	F	P	F crit
Between Groups	4.2709	2	2.1354	5.3033	0.0155	3.5546
Within Groups	7.2480	18	0.4027
Total	11.5189	20

(a)

What is the next step in the one-way ANOVA?

There is not enough information, so collect more data.Stop, the results were not significant. The Tukey-Kramer post hoc test is not needed. Stop, the results were significant. The Tukey-Kramer post hoc test is not needed.Continue to the Tukey-Kramer post hoc test, as the results were significant.

(b)

The Tukey-Kramer method uses the formula

(x_i − x_j) ± q

MSE