58. 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 process 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 process average percent defective can be calculated as follows:
Total number of bulbs sampled = 100 x 40 = 4000
Percent defective in the sampled bulbs = (600/4000) x 100 = 15%
Therefore, the estimate for the process average percent defective is 0.150 or 15% (Option C).

58 a Company Randomly Selects 100 Light Bulbs Every Day