Example of formatting cells that contain missing observations

A quality engineer for a pharmaceutical company wants to determine the shelf life for pills that contain a new drug. The engineer collects a batch of pills from each of five production lines. The engineer tests one pill from each batch at nine different times. However, the engineer fails to test a sample at some of the production line/time combinations. Therefore, those observations are missing.

The engineer uses conditional formatting to identify the cells that contain the missing observations.

  1. Open the sample data, ShelfLife.MTW.
  2. Click in the Drug% column.
  3. Choose Editor > Conditional Formatting > Highlight Cell > Missing Observations.
  4. From Style, select Yellow.
  5. Click OK.


The cells that contain missing values are shaded yellow.

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