Instruction 10-14 A Quality Control Engineer Is in Charge of the Manufacture

question 119

Multiple Choice

Instruction 10-14
A quality control engineer is in charge of the manufacture of computer disks. Two different processes can be used to manufacture the disks. He suspects that the Kohler method produces a greater proportion of defects than the Russell method. He samples 150 of the Kohler and 200 of the Russell disks and finds that 27 and 18 of them, respectively, are defective. If Kohler is designated as "Group 1" and Russell is designated as "Group 2", perform the appropriate test at a level of significance of 0.01.
-Referring to Instruction 10-14,the hypotheses that should be tested are

• A) H₀: π₁ - π₂ ≠ 0 versus H₁: π₁ - π₂ = 0.
• B) H₀: π₁ - π₂ ≥ 0 versus H₁: π₁ - π₂ < 0.
• C) H₀: π₁ - π₂ = 0 versus H₁: π₁ - π₂ ≠ 0.
• D) H₀: π₁ - π₂ ≤ 0 versus H₁: π₁ - π₂ > 0.

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Definitions:

Market Analysis

The evaluation of the size, trends, and growth potential of a specific market, including identification of customer needs and competitors.

Competitive Analysis

The process of identifying key competitors and evaluating their strategies, strengths, and weaknesses to determine market position and inform business strategies.

Startup Costs

Initial expenses required to establish a new business, including legal fees, marketing, equipment, and rent.

Business Metrics

Quantitative measures used to track and assess the status or performance of various aspects of a business.