Question

A light bulb company produces 2000 light bulbs per week. The manager wants to ensure that standards of quality remain constant from week to week. The manager therefore claims that out of 2000 light bulbs produced per week, 500 light bulbs are rejected. Of the following, the best criticism of the manager's plan is that the plan assumes that

• A. Light bulb manufacturers cannot accept all light bulbs that are produced.
• B. Each light bulb reviewed is worthy of being reviewed.
• C. It is difficult to judge the quality of a light bulb.
• D. The 1,500 light bulbs that are accepted will be of the same quality from week to week.

Answer 1

The Correct Option is D

The light bulb manager's plan to maintain quality by rejecting a fixed number of bulbs (500 out of 2000) is flawed. It assumes that rejecting a set number guarantees the quality of the remaining bulbs. However, simply rejecting a fixed amount doesn't account for potential variations in the manufacturing process that could affect the quality of the accepted bulbs.

A better approach would involve implementing a more robust quality control system that uses specific criteria and testing to ensure consistent quality, rather than relying solely on a fixed rejection rate.
The correct answer is (D) : The 1,500 light bulbs that are accepted will be of the same quality from week to week.