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 = 7.1                 s = 2.3             n = 18              α = 0.01 H0: µ = 10 H1: µ < 10 The test statistics is  (Round to three decimal places)

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15. 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 = 7.1                 s = 2.3             n = 18              α = 0.01

H0: µ = 10

H1: µ < 10

The test statistics is  (Round to three decimal places)

 

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