Consider the following to answer the question(s) below:
A company manufacturing computer chips finds that 8% of all chips manufactured are defective. Management is concerned that high employee turnover is partially responsible for the high defect rate. In an effort to decrease the percentage of defective chips, management decides to provide additional training to those employees hired within the last year. After training was implemented, a sample of 450 chips revealed only 27 defects. Was the additional training effective in lowering the defect rate?
-The P-value associated with the test statistic is
A) 0.01.
B) 0.05.
C) 0.2339.
D) 0.0594.
E) 0.0075.

Question

Quizplus · Accepted Answer

The p-value of 0.0594 suggests that there is a statistically significant difference in the defect rates before and after the training, indicating that the training was effective in lowering the defect rate. This p-value is close to the common significance level of 0.05, suggesting that the result is marginally significant.

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