To estimate percentiles and survival probabilities
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1    In the Accelerated Life Testing dialog box, click Estimate.

2    In Enter new predictor values, enter one new value or column of new values. Often you will enter the design value, or common running condition, for the units.

3    Do any of the following, then click OK:

·    To estimate percentiles, enter the percents in Estimate percentiles for percents. By default, Minitab estimates the 50th percentile. If you want to look at the beginning, middle, and end of the product's lifetime for a given predictor value, enter 10 50 90 (the 10th, 50th, 90th percentiles). Minitab then estimates how long it takes for 10% of the units to fail, 50% of the units to fail, and 90% of the units to fail.

·    To estimate survival probabilities, enter the times in Estimate probabilities for times. For example, when you enter 70 (units in hours), Minitab estimates the probability, for each predictor value, that the unit will survive past 70 hours.