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Category > Statistics Posted 28 May 2017 My Price 6.00

A machine that fills cereal boxes is supposed to be calibrated

12.     A machine that fills cereal boxes is supposed to be calibrated so that the mean fill weight is 12 oz. Let µ denote the true mean fill weight. Assume that in a test of the hypotheses H0 : µ = 12 versus H1 : µ /= 12, the P-value is 0.30.

a.    Should H0 be rejected on the basis of this test? Explain.

b.    Can you conclude that the machine is calibrated to provide a mean fill weight of 12 oz? Explain.

13.     A method of applying zinc plating to steel is sup- posed to produce a coating whose mean thickness is no greater than 7 microns. A quality inspector mea- sures the thickness of 36 coated specimens and tests

H0 : µ ≤ 7 versus H1 : µ > 7. She obtains a P-value of 0.40. Since P > 0.05, she concludes that the mean

thickness is within the specification. Is this conclusion correct? Explain.

Answers

Alpha Geek
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Status NEW Posted 28 May 2017 09:05 AM My Price 6.00

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file 1495964381-1495884_1_636268000097582944_Solution2.docx preview (130 words )
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