Review problem on replacement part for a machine

Reference no: EM131807552

Question: A replacement part for a machine must be produced within close specifications in order for it to be acceptable to customers. A production process is considered to be working properly as long as the variance in the lengths of the parts does not exceed 0.05 squared-units. Suppose the sample variance computed from 30 parts turns out to be s² = 0.07. Use this sample evidence to test if the production specification is not being met at a 5% level of significance.

Reference no: EM131807552

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