To test Ho: 6 = 1.3 versus H1: of 1.3, a random sample of size n = 19 is obtained from a population that is known to be normally distributed. (a) If the sample standard deviation is determined to be s = 1.6, compute the test statistic. no xo = (Round to three decimal places as needed.) (b) If the researcher decides to test this hypothesis at the a = 0.05 level of significance, determine the critical values. an The critical values are xo.025 = and x6.975 =] (Round to three decimal places as needed.) 3 (c) Draw a chi-squared distribution and depict the critical region. Choose the correct graph below. O A. O B. O c. OD. on d is er O O her it or mb (d) Will the researcher reject the null hypothesis? Why? Choose the correct answer below. and O A. Yes, because the test statistic is in the critical region. O B. No, because the test statistic is in the critical region. CE O C. No, because the test statistic is not in the critical region. O D. Yes, because the test statistic is not in the critical region