6. The test statistic of z = - 2.48 is obtained when testing the claim that p = 1 / 4. a. Using a significance level of a = 0.10, find the critical value(s). b. Should we reject Ho or should we fail to reject Ho? Click here to view page 1 of the standard normal distribution table. Click here to view page 2 of the standard normal distribution table. a. The critical value(s) is/are z = (Round to two decimal places as needed. Use a comma to separate answers as needed.) b. Choose the correct conclusion below. OA. Reject Ho. There is not sufficient evidence to warrant rejection of the claim that p = 1 / 4. O B. Fail to reject Ho. There is sufficient evidence to warrant rejection of the claim that p = 1 / 4. O C. Reject Ho. There is sufficient evidence to warrant rejection of the claim that p = 1 / 4. D. Fail to reject Ho. There is not sufficient evidence to warrant rejection of the claim that p = 1 / 4