Create Stability Study Worksheet - Options
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Stat > Regression > Stability Study > Create Stability Study Worksheet > Options

Choose how Minitab randomizes the order of the runs in your data collection worksheet. Each table below shows a possible run order for each option. All examples are for a study that includes 3 batches and 2 samples at each test time (also called repeats) for each batch.

Dialog box items

Do not randomize: Choose to sample each batch in sequential order at each test time. Each batch is sampled once before any repeats.

Do not randomize, group repeats by batch: Choose to sample each batch in sequential order and to take all repeats from one batch before switching to the next batch.

Randomize batch sequence at each testing time, group repeats by batch: Choose to randomize the order of the batches at each test time and to take all repeats from one batch before switching to the next batch.

Randomize batch sequence and repeats at each testing time: Choose to randomize the order of the batches and the repeats at each test time.

Base for random data generator: Enter any positive integer to generate multiple worksheets that have the same run order. For example, suppose two Minitab users each follow the steps in Example of Creating a Stability Study Worksheet. The run order for their worksheets will almost certainly be different because Minitab randomizes the run order. However, if each user enters 37 in Base for random data generator, then their worksheets will be identical, including the run order.

Store standard run order in worksheet: Check to add a column to the worksheet that shows the standard order of the runs. If you choose Do not randomize, then the run order is the same as the standard order, as shown below.