We illustrate how to use JMP with the insulating fluid data to be imported below. These data gives the time in minutes to dielectric breakdown or removal of 76 batches of insulating fluid tested at the following voltages (kilovolts):
26KV, 28KV, 30KV, 32KV, 34KV, 36KV, 38KV
Import into JMP the insulating fluid data:
(Instructions for importing a text file into JMP)
The JMP table should look as follows:
The code 0 means a failure time, the code 1 a removal time. The Frequency columns gives the number of batches that were removed at a given time. So row 4 of the JMP table above is interpreted as: "four batches tested at 28KV were removed at 100 minutes.
We use the Kaplan-Meier function of the survival platform:
If we exclude the data for 32 kilovolts we see that the lognormal distributions with common shape parameters and different location parameters provides a good fit for the data at the different voltages:
