Complete parts (a) through (c) below. (a) Determine the critical value(s) for a right-tailed test of a population mean at the a = 0.05 level of significance with 10 degrees of freedom. (b) Determine the critical value(s) for a left-tailed test of a population mean at the a = 0.01 level of significance based on a sample size of n= 15. (c) Determine the critical value(s) for a two-tailed test of a population mean at the a= 0.10 level of significance based on a sample size of n= 12. Click here to view the t-Distribution Area in Right Tail. (a) terit = + 1.812 (Round to three decimal places as needed.) (b) terit = 2.624 (Round to three decimal places as needed.) (c) tcrit = (Round to three decimal places as needed.)

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