When a Belt applies the practice of Poka-Yoke to a project challenge she is attempting to make certain the activity is _______________ .

According to a manager it takes an average weekday commute of 39 minutes with a Standard Deviation of
7 minutes for the employees to get to work when they use their personal vehicles for their office commute while management set a policy of not more than 40 minutes for their daily one-way commute. A survey conducted one day on 70 employees showed an average of 34 minutes commuting time using the metro public transportation system with a Standard Deviation of 21 minutes. For the employees choosing to increase their chances to come on time using personal transportation their variation should be reduced to
___________?

The data on SPC charts are typically constructed such that they have the most recent data point on the right hand side.

Training cost is $4,000 and a project required an initial investment of $30,000. If the project yields monthly savings of $2,000 beginning after 3 months, what is the payback period in months (before money costs and taxes)?

Fractional Factorial designs for an experimental approach are used when ____________ about the multiple metric interaction in a process.