A textile fiber manufacturer is investigating a new drapery yarn, which the company claims has a mean thread elongation

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A textile fiber manufacturer is investigating a new drapery yarn, which the company claims has a mean thread elongation

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A Textile Fiber Manufacturer Is Investigating A New Drapery Yarn Which The Company Claims Has A Mean Thread Elongation 1
A Textile Fiber Manufacturer Is Investigating A New Drapery Yarn Which The Company Claims Has A Mean Thread Elongation 1 (24.99 KiB) Viewed 41 times
A textile fiber manufacturer is investigating a new drapery yarn, which the company claims has a mean thread elongation of 12 kilograms with a standard deviation of 0.5 kilograms. The company wishes to test the hypothesis Ho:μ = 12 against H₁:μ< 12, using a random sample of 4 specimens. Round your answers to 4 decimal places. (a) What is the type I error probability if the critical region is defined as < 11.5 kilograms? The type I error probability is i (b) Find for the case where the true mean elongation is 11.28 kilograms. B = i (c) Find for the case where the true mean is 11.5 kilograms. B = = i
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