part A. the test statistics is z=

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 5% significance level. x =41, n=20, o = 10, Ho: H= 37, He: H#37 . 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.) O A. The critical value is za = O B. The critical value is - Za= O C. The critical values are + Za/2 = + the null hypothesis. The data sufficient evidence to conclude that the mean is