Gasoline pumped from a suppliers pipeline is supposed to have an octane rating of 87.5. On 13

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Gasoline pumped from a supplier€™s pipeline is supposed to have an octane rating of 87.5. On 13 consecutive days, a sample of octane ratings was taken and analyzed, with the following results:

a. Find the sample mean.
b. Find the sample standard deviation.
c. Do you think these readings average 87.5? Explain.

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Elementary Statistics

ISBN: 9780538733502

11th Edition

Authors: Robert R. Johnson, Patricia J. Kuby

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Question Posted: Aug 27, 2015 07:02 AM

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Gasoline pumped from a suppliers pipeline is supposed to have an octane rating of 87.5. On 13

Question:

86.1 874 87.3 86.4 86.6 87.1

Step by Step Answer:

Data summary n 13 x 11331 x 9876935 a xn ...View the full answer

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