Question

Do the different regions have a significant impact on World Happiness Index results? The researcher has selected random countries from three different regions: a) Europe, b) Asia, c) America. By using ANOVA set up correct hypothesis and analyse could the region affect the result of happiness index.

a) Would you reject the null-hypothesis?  (Use the significance level of 5%). Please provide the explanation why do you reject or not reject your hypothesis.

b) Use the confidence level 99%. Is it possible to reject the null hypothesis? Why?

Europe	Europe	Europe
7.44	6.81	7.07
7.31	6.77	5.97
7.19	6.37	5.96
7.14	6.37	6.26
6.98	6.34	6.19
6.97	6.32	6.43
6.93	6.44	6.42
6.91	6.11	6.39
6.71	6.10	6.38
6.63	6.08	6.38
6.49	6.07	6.17
6.12		6.14
6.31		6.49
6.17		6.48
6.00
5.95
7.63
7.59
7.56
7.50
7.49

Anova: Single Factor

Groups	Count	Sum	Average	Variance
Europe	21	145.011	6.905285714	0.311450314
Asia	11	69.795	6.345	0.0678042
America	14	88.723	6.337357143	0.075079632

Source of Variation	SS	df	MS	F	P-value	F crit
Between Groups	3.638089913	2	1.819044957	9.922377853	0.000286278	3.214480328
Within Groups	7.8830835	43	0.183327523
Total	11.52117341	45

please answer in excel I leave likes!

Answer 1