A quality control engineer at a potato chip company tests the bag filling machine by weighing bags of potato chips. Not every bag contains exactly the same weight. But if more than 15% of bags are over-filled then they stop production to fix the machine. They define over-filled to be more than 1 ounce above the weight on the package. The engineer weighs 133 bags and finds that 43 of them are over-filled. He plans to test the hypotheses Ho: p = 0.15 versus Ha: p > 0.15. What is the test statistic?

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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A quality control engineer at a potato chip company tests the bag filling machine by weighing bags of potato chips. Not every bag contains exactly the same weight. But if more than 15% of bags are over-filled then they stop production to fix the machine. They define over-filled to be more than 1 ounce above the weight on the package.

The engineer weighs 133 bags and finds that 43 of them are over-filled. He plans to test the hypotheses \(H_0: p = 0.15\) versus \(H_a: p > 0.15\). What is the test statistic?
Transcribed Image Text:A quality control engineer at a potato chip company tests the bag filling machine by weighing bags of potato chips. Not every bag contains exactly the same weight. But if more than 15% of bags are over-filled then they stop production to fix the machine. They define over-filled to be more than 1 ounce above the weight on the package. The engineer weighs 133 bags and finds that 43 of them are over-filled. He plans to test the hypotheses \(H_0: p = 0.15\) versus \(H_a: p > 0.15\). What is the test statistic?
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