8.3 ANOVA (Analysis of Variance)

8.3 ANOVA (Analysis of Variance)

• To test for equality of a population mean
  • P-value > 0.05, then the assumption of equality of a population is satisfied
• If H0 is accepted: all population mean for the test are equal, and vice versa
• To deployed ANOVA, dependent variable should has equal variance and normally distributed

• Hypothesis test in R-Programming:
  • H0: μ1 = μ2 = … = μk
  • H1: μ=i =μj for at least one pair (i, j), i≠j
  • The p-value is very small and therefore, the hypothesis of equality of true is rejected