Using The t Distribution Table, find the critical value(s) for the t test for a left-tailed test with =n14 and α =0.10 . Enter the answers separated by a comma if needed. Critical value(s) =
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Given n = 14, so df = 14 - 1 = 13. ** Show more…
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Table 6 of Appendix II gives critical values for the Student's $t$ distribution. Use an appropriate $d . f .$ as the row header. For a right-tailed test, the column header is the value of $\alpha$ found in the one-tail area row. For a left-tailed test, the column header is the value of $\alpha$ found in the one-tail area row, but you must change the sign of the critical value $t$ to $-t$ For a two-tailed test, the column header is the value of $\alpha$ from the two-tail area row. The critical values are the $\pm t$ values shown. Solve Problem 12 using the critical region method of testing. Compare your conclusion with the conclusion obtained by using the $P$ -value method. Are they the same?
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