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- June 8th 2008, 09:42 PM #1

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- June 8th 2008, 09:45 PM #2

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- June 8th 2008, 10:28 PM #3

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- June 8th 2008, 11:50 PM #4
There must be more to the question than just this! And what have I said about the setting out ....!?

Is it the sample standard deviation or the population standard deviation?

If the latter, than the z-statistic is appropriate and the p-value is 0.4467 (correct to four decimal places).

If the former, than the t-statistic is appropriate (provided the data come from a normal population) and the p-value is 0.4474 (correct to four decimal places).