| Overview
This ALT addresses planning and executing the appropriate variable
control chart that considers the forms of variation found in measuring
the temperature variations within a particular facility (in this
case, the meeting room in which the activity will take place). These
forms of variation include:
- location (within, between, or over time)
- measuring instruments
- operator (data collector or reader)
- effects of time
This activity highlights some of the sources of variation inherent
in the data collection process, as well as the amount of inherent
variation in a property (in this case, room temperature) which we
would normally expect to be uniform. After collecting and completing
the charting techniques, you determine if the facility is capable
of meeting a specified temperature variation, and you outline an
appropriate improvement plan.
After completing this ALT, you should be able to demonstrate the
following competencies:
- Apply the concepts of "forms of variability" and "process
dominance" to the selection of an appropriate control technique
(Comp. 1).
- Acquire, analyze, and interpret data from a process to determine
if the process is in statistical control and capable of meeting
customer requirements (Comp. 2).
- Apply problem-solving techniques to the development of an improvement
plan for processes that are not in statistical control and/or
not capable of meeting customer requirements (Comp. 3).
Materials and Equipment
No materials or equipment are needed for this ALT.
Safety and Disposal
Do not use mercury thermometers in this or any other module activity.
Mercury is a hazardous material and, because breakage is a possibility,
mercury thermometers must not be used.
Pre-Activity
To prepare for the activity:
Activity
In your team, perform the following steps to complete the activity:
- Your mediator will explain the parameters for this activity.
- According to your instructor's instructions, complete Instruction
Sheet: The X-MR Chart, Instruction Sheet: The Xbar-R Chart, and
all related data sheets.
Post-Activity
Your team should now post all of its results from the activity
to the Discussion Board.
Assignment
There are no instructions to prepare for ALT #2: Hats Off to Us!
Assessment
Your facilitator may use Assessment Sheet: Are We Too Cool? to evaluate
your results from the activity and your posting to the Discussion
Board.
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