Fig 1.
The PDF and HRF of IKum distribution for different values of γ and θ.
Fig 2.
The process of generating order statistics under Type-I PHCS.
Table 1.
Progressive CSs that have been used in the Monte Carlo simulation.
Table 2.
MSEs for the MLEs and Bayes estimates of (γ, θ, λ) for different schemes with T1 = 0.9, T2 = 0.5.
Prior parameter values are: μ = 2, ν = 1.5, ζ = 1.5, η = 1.5. Population parameter values are: γ = 1.85699, θ = 2.50899, λ = 1.5.
Table 3.
RABs for the MLEs and Bayes estimates of γ, θ, λ for different schemes with T1 = 0.9, T2 = 0.5.
Prior parameter values are: μ = 2, ν = 1.5, ζ = 1.5, η = 1.5. Population parameter values are: γ = 1.85699, θ = 2.50899, λ = 1.5.
Table 4.
AILs and CPs of 95% CIs of γ, θ, λ for different schemes with T1 = 0.9, T2 = 0.5.
Prior parameter values are: μ = 2, ν = 1.5, ζ = 1.5, η = 1.5. Population parameter values are: γ = 1.85699, θ = 2.50899, λ = 1.5.
Table 5.
MSEs for the MLEs and Bayes estimates of γ, θ, λ for different schemes with T1 = 0.9, T2 = 0.5.
Prior parameter values are: μ = 2, ν = 1.5, ζ = 1.5, η = 1.5. Population parameter values are: γ = 1.85699, θ = 2.50899, λ = 1.5.
Table 6.
RABs for the MLEs and Bayes estimates of γ, θ, λ for different schemes with T1 = 0.9, T2 = 0.5.
Prior parameter values are: μ = 2, ν = 1.5, ζ = 1.5, η = 1.5. Population parameter values are: γ = 1.85699, θ = 2.50899, λ = 1.5.
Table 7.
AILs and CPs of 95% CIs of γ, θ, λ for different schemes with T1 = 0.9, T2 = 0.5.
Prior parameter values are: μ = 2, ν = 1.5, ζ = 1.5, η = 1.5. Population parameter values are: γ = 1.85699, θ = 2.50899, λ = 1.5.
Fig 3.
Empirical CDFs against CDFs of the IKum distribution for the given data listed in Table 8, under two the stress levels.
Table 8.
Times to breakdown of an insulating fluid.
Table 9.
MLEs of the parameters, K-S statistic and p-value.
Table 10.
The three samples under Type-I PHCSs.
Table 11.
MLEs and Bayes estimates of (γ, θ, λ), MTTF and RF based on the three samples given in Table 10.
Table 12.
NACIs, LTCIs and credible intervals of the parameters based on the three samples given in Table 10.