Use Distribution ID Plot to compare the fits of the following distributions: smallest extreme value, Weibull, 3-parameter Weibull, exponential, 2-parameter exponential, normal, lognormal, 3-parameter lognormal, logistic, loglogistic, or 3-parameter loglogistic. Minitab provides both graphical (probability plots) and quantitative (goodness of fit statistics) comparisons.

Assess how different distributions affect your results by comparing the estimates of the percentiles and mean time to failure (MTTF).

A household appliance manufacturer is considering switching to a new, cheaper cord for its line of irons and wants to assess the reliability of the new cords. The cord failure time in hours was recorded.

Data: IronCord.MTW (available in the Sample Data folder).