Question on anova in minitab

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Reference no: EM1397642

Samples are shown of volatility (coefficient of variation) for sector stocks over a certain period of time.

(a) At α = .05, is there a difference in median volatility in these four portfolios? Use Mega-Stat, MINITAB, or a similar computer package for the calculations.

(b) Use one-factor ANOVA to compare the means. Do you reach the same conclusion?

Health Energy Retail Leisure

14.5 23.0 19.4 17.6

18.4 19.9 20.7 18.1

13.7 24.5 18.5 16.1

16.9 24.2 15.5 23.2

16.2 19.4 17.7 17.6

21.6 22.1 21.4 25.5

25.6 31.6 26.5 24.1

21.4 22.4 21.5 25.9

26.6 31.3 22.8 25.5

19.0 32.5 27.4 26.3

12.6 12.8 22.0 12.9

13.5 14.4 17.1 11.1

13.5 24.8 4.9

13.0 13.4

13.6

Reference no: EM1397642

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