Determine the critical values for these tests of a population standard deviation. a) A right-tailed test with 12 degrees of freedom at the a= 0.01 level of significance b) A left-tailed test for a sample of size n=23 at the a=0.1 level of significance (c) A two-tailed test for a sample of size n=27 at the a= 0.01 level of significance Click the icon to view a table a critical values for the Chi-Square Distribution. (a) The critical value for this right-tailed test is (Round to three decimal places as needed.) Textbook T Statcrunch Ask my instructor Type here to search DI di C... F A a V C 96

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