Authentic Learning Task (ALT) #5: Setting a Light Bulb Warranty Period

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ALT #5 Overview

Overview

In this ALT, you analyze data to set a warranty period for 7-volt light bulbs. Using a graph, summary statistics, and an appropriate z-score, you determine that warranty time so that a company is responsible for replacing (at most) 5% of its production. Cost issues concerning warranties are also addressed.

After completing this ALT, you should be able to demonstrate the following competency:

  • Determine a product warranty period using data which illustrate a normal distribution (Comp. 7).

Materials and Equipment
No materials or equipment are needed to complete this ALT.

Safety and Disposal
No special safety or disposal procedures are required.

Pre-Activity

To prepare for the activity:

Activity

In your team, perform the following step to complete the activity:

  1. Complete Data Sheet: Setting a Light Bulb Warranty Period.

Post-Activity

Your team should now post its results from the activity to the Discussion Board.

Assignment
There are no instructions to prepare for Transfer Activity: Product Life Cycle Analysis for Warranty Determination.

Assessment
Your facilitator may use Assessment Sheet: Setting a Light Bulb Warranty Period to evaluate your results from the activity and your posting to the Discussion Board.
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