Sarpedon Corp. claims that its car batteries average at least 880 CCA (cold-cranking amps). Tests on a

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Sarpedon Corp. claims that its car batteries average at least 880 CCA (cold-cranking amps). Tests on a sample of 9 batteries yield a mean of 871 CCA with a standard deviation of 15.6 CCA.

(a) State the hypotheses to test Sarpedon's claim against this sample evidence.

(b) What is the critical value at the 5 percent level of significance?

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Applied Statistics In Business And Economics

ISBN: 9780077837303

5th Edition

Authors: David Doane, Lori Seward

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Question Posted: Sep 15, 2017 12:15 PM

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Sarpedon Corp. claims that its car batteries average at least 880 CCA (cold-cranking amps). Tests on a

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Applied Statistics In Business And Economics

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