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Dell-EMC

E20-007 · Question #155

A disk drive manufacturer has a defect rate of less than 1.5% with 98% confidence. A quality assurance team samples 1000 disk drives and finds 14 defective units. Which action should the team…

The correct answer is C. The manufacturing process is functioning properly and no further action is required. See the full explanation below for the reasoning.

Question

A disk drive manufacturer has a defect rate of less than 1.5% with 98% confidence. A quality assurance team samples 1000 disk drives and finds 14 defective units. Which action should the team recommend?

Options

  • AA smaller sample size should be taken to determine if the plant is operating correctly
  • BA larger sample size should be taken to determine if the plant is operating correctly
  • CThe manufacturing process is functioning properly and no further action is required
  • DThere is a flaw in the quality assurance process and the sample should be repeated

How the community answered

(23 responses)
  • A
    9% (2)
  • B
    4% (1)
  • C
    74% (17)
  • D
    13% (3)

Community Discussion

No community discussion yet for this question.

Full E20-007 Practice