ffice are ready to be installed, but first we need to close some apps. Upd 1.a.

Question

ffice are ready to be installed, but first we need to close some apps. Upd 1.a. From randomly selected 10 countries. Perform an ANOVA test to determine if there is a difference in these three averages. Using ? = 0.05 to determine ANOVA. Ha Not all us are equal GDP analysis nt Rate Mean Standard Error Median Mode Standard Deviation 5.49 2.015781307 2.48 Mean Standard Error Median Mode Standard Deviation 6.96 1.113673 5.15 4.1 3.52 #N/A 6.37 Mean Standard Error Median Mode Standard Deviation 5.15 2.309085533 1.36 #N/A 7.30 d States) ??

Explanation / Answer

since the p-value between group is less than alpha=0.05, so we fail to accept null hypothesis and conclude that there is one mean is different from others.

following ifnormation have been generated using ms-excel

within SS between SS Group nj mean(xj-) s2 nj*xj- (n-1)s2 (xj--x-) nj(xj--x-)2 1 10 5.49 40.5769 54.9 365.1921 -14.12 1993.744 2 10 6.96 12.3904 69.6 111.5136 -12.65 1600.225 3 10 5.15 53.29 51.5 479.61 -14.46 2090.916 sum 30 17.6 106.2573 176 956.3157 -41.23 5684.885 grand mean(x-) 19.61 ANOVA SOURCE DF SS MS F CRITICAL F(0.05) p-value BETWEEN 2 5684.89 2842.443 80.25 3.35 4.34E-12 WITHIN(ERROR) 27 956.32 35.4191 TOTAL 29 6641.20

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