Fourth,consider the relationship between the alternative distribution, Gamma(0.55,0.275) and the simulated power. Figure 4 summarizes the power analysis for the Gamma(0.55,0.275) alternative distribution. The
PML-test outperformed other four exponentiality tests across all sample sizes and significance levels. The
LF-test exhibited the lowest power across all sample sizes and significance levels. For sample sizes at least 50, the powers for all five tests were found almost equal whichwere close to 1 across all significance levels. In
all parameter settings, the powers for the VS-test, the D-test, and the S-test were identical but all these three tests outperformed the LF-test across all sample sizes and significance levels