A factory that produces taco-shells makes a total of 20,000 shells in a batch. A batch is successful and
can be shipped to a customer if no more than 2000 of the shells are broken. The quality control agent
for the company randomly picks 400 shells from the batch and finds that 60 are broken. Based on the
technique of single-estimation, is the batch successful? Explain using statistics.

Question

Quizplus · Accepted Answer

The Answer is No. During the single-estimation
sampling, it is found that 15% of the
sample is broken, where-as no more
than 10% of a batch can be broken.

A Factory That Produces Taco-Shells Makes a Total of 20,000