A lot can be "accepted" or "rejected" in a double-sampling plan:
I.after one sample is taken.
II.after two samples are taken.
III.after one sample is checked twice.
A) I only
B) II only
C) III only
D) I or II
E) I or III

Question

Quizplus · Accepted Answer

In a double-sampling plan, the decision to accept or reject a lot can be made after one sample is taken (first stage) and reviewed. However, if the first stage results are inconclusive, a second sample is taken (second stage) to make the final decision. Therefore, the acceptance or rejection decision can be made after one sample (I) or two samples (II). Option III is incorrect because checking the same sample twice does not constitute a double-sampling plan.

A Lot Can Be "Accepted" or "Rejected" in a Double-Sampling