A sample mean, sample standard deviation, and sample size are given. Use the one-mean t-test to perform the required hypothesis test about the mean, μ, of the population from which the sample was drawn. Use the critical-value approach. Sample mean = 3.12               s = 0.59                       n = 9                α = 0.01 H0: µ = 2.85 H1: µ > 2.85 The test statistics is  (Round to three decimal places)

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