Question: A hypothesis will be used to test that a population mean equals 7 against the alternative that the population mean does not equal 7 with

A hypothesis will be used to test that a population mean equals 7 against the alternative that the population mean does not equal 7 with unknown variance. What are the critical values for the test statistic T₀ for the following significance levels and sample sizes?

(a) α = 0.01 and n = 20

(b) α = 0.05 and n = 12

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