On discovering an improperly adjusted drill press, Jack Joyner, Director of Quality Control, ordered an inspection of every fifth casting drilled during the evening shift.Less than 1% of the sampled castings were defective; so, Jack released the evening shift's production to assembly.This is an example of _______________.
A)nonparametric statistics
B)nominal data
C)descriptive statistics
D)inferential statistics
E)judgmental statistics

Question

Quizplus · Accepted Answer

Jack used a sample (every fifth casting) to make an inference about the entire production of the evening shift, which is a core principle of inferential statistics.

On Discovering an Improperly Adjusted Drill Press, Jack Joyner, Director