Question

Please Perform ANOVA One-Factor Analysis by doing the following (Hint: Chapter 12, ANOVA):

a. Organize the data and show in MS Excel (5 points);

b. Write down one question that you could answers using ANOVA One Factor analysis with the Happiness_2011.xls dataset and state its null and alternate hypotheses (5 points);

c. Perform one ANOVA One-Factor analysis using two reasonable variables from the Happiness_2011.xls dataset (one quantitative variable and one qualitative group variable) and show the analysis results for the question (10 points);

d. Indicate whether you reject or accept the null hypothesis (5 points);

e. Interpret your findings from the analysis (5 points).

Answer 1

(a) The organized data is:

(b), (c), (d) & (e) The question to be analyzed is:

Does income depend on the happiness level?

The hypothesis being tested is:

H0: µ1 = µ2 = µ3

Ha: Not all means are not equal

Analysis of Variance

Source	DF	Adj SS	Adj MS	F-Value	P-Value
Happiness	2	145.3	72.65	3.12	0.048
Error	98	2279.8	23.26
Total	100	2425.1

The p-value is 0.048.

Since the p-value (0.048) is less than the significance level (0.05), we can reject the null hypothesis.

Therefore, we can conclude that income depends on the happiness level.