[Solution] Testing Hypothesis for Population Mean (Chapter 8): Given a sample size of 38, with sample mean 660.3 and sample standard deviation 95.9 we are


Question: Testing Hypothesis for Population Mean (Chapter 8):
Given a sample size of 38, with sample mean 660.3 and sample standard deviation 95.9 we are to perform the following hypothesis test.

Null Hypothesis H0: μ = 700

Alternative Hypothesis H0: μ ≠ 700

At significance level 0.05

Calculate the test statistics
(Tip: this is the case when we test the claim about population mean with population standard deviation not known; 95.9 is a sample standard deviation not a population standard deviation).

Use Table A-3 to find critical value for this test and make decision:
reject or do not reject the Null Hypothesis

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