https://www.mathxl.com/Student/PlayerTest.aspx?testld=234065744¢erwin=yes MATH 2300 - 112 Statistical Methods Question 12 of 14 This test: 100 point(s) possible This question: 10 point(s) possible A sample mean, sample size, and population standard deviation are provided below. Use the one-mean z-test to perform the required hypothesis test at the 1% significance level. x = 24, n = 19, o = 4, Ho: H - 21, Ha: H> 21 The test statistic is z = (Round to two decimal places as needed.) Identify the critical value(s). Select the correct choice below and fill in the answer box within your choice. (Round to two decimal places as needed.) A. The critical values are + Za/2 - # O B. The critical value is Za = O C. The critical value is - Za the null hypothesis. The data sufficient evidence to conclude that the mean is