A company randomly selects 100 light bulbs every day for 40 days from its production process.If 600 defective light bulbs are found in the sampled bulbs then the estimate for the average percent defective would be
A)6.667
B)0.167
C)0.150
D)0.250

Question

Quizplus · Accepted Answer

The estimate for the average percent defective can be calculated as:
Total number of defective bulbs / Total number of bulbs sampled * 100
Total number of bulbs sampled = 100 bulbs per day * 40 days = 4000 bulbs
Using the information given in the question,
Total number of defective bulbs = 600
Hence, the estimate for the average percent defective is:
600 / 4000 * 100 = 15%
Therefore, the best choice is C, which is 0.150.

A Company Randomly Selects 100 Light Bulbs Every Day for 40