Examlex
The frequency of breakdown of a piece of equipment per month is shown in the table.The cost of a breakdown is $1,000 and the cost of preventive maintenance is $2,000 per month.Assume that the equipment breakdown can be avoided if preventive maintenance is performed.Should the manager use preventive maintenance, or would it be better to fix the equipment when it breaks down?
Type II Error
Occurs when a statistical test fails to reject a false null hypothesis; also known as a false negative.
Level Of Significance
A threshold in hypothesis testing that determines whether or not the null hypothesis can be rejected.
Null Hypothesis
A default premise stating no statistical significance or effect, used as a starting point for hypothesis testing to be either rejected or not rejected.
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