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X Help Center Question 17 O out of 5 points Find the critical value. termine the critical value for a left-tailed test of a population mean at the a = 0.1 level of significance based on a sample size of n # 22. Question 18 o out of 5 points Find the critical value(s). Determine the critical value for a left-tailed test of a population standard deviation for a sample of size nois at the a o. level of significance. Question 19 out of 5 points The null and alternative hypotheses are given. Determine whether the hypothesis test is left-tailed, right-tailed, or two-tailed and the parameter that is being tested. RA 2 0.93 Question 20 O out of 5 points Provide an appropriate respon test is performed, how should you interpret a decision that fails to reject the Thursday Ma OK