Overall Notes

• There is one version of this assessment provided in the Teacher Resources Materials (TRM). Use this assessment as-is or use it as a model to create your own. 

• If you are making your own assessment, consider using the test bank and the ExamView software

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Common Student Errors

• When doing normal distribution calculations, students often forget what must be included for full credit. We suggest requiring a picture to be drawn and labeled, work shown with a z-score calculation, and then a final answer.

• When calculating an area to the right of a boundary value, students often forget to subtract the area in Table A away from 1. 

• When using Table A to find a percentile (area), students often incorrectly find the value in the left column (z-score), when they should be looking at the body of the table. 

• Students sometimes assume that all distributions are normal distributions. If you give them a problem with a uniform density curve, they should not be using Table A to find areas.