Question: In a two-tailed, one-sample t-test (df = 22, = .01), if the difference between the observed sample mean and the known population mean is 30,

In a two-tailed, one-sample t-test (df = 22, = .01), if the difference between the observed sample mean and the known population mean is 30, and the estimated standard error of the mean is 15, what can we conclude

a.The null hypothesis should be rejected.

b.The null hypothesis should fail to be rejected.

c.There is not enough information to reach a conclusion.

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