The test statistic of z= - 3.18 is obtained when testing the claim that p= 1/2. a. Using a significance level of a = 0.10, find the critical value(s). b. Should we reject Hn or should we fail to...

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Extracted text: The test statistic of z= - 3.18 is obtained when testing the claim that p= 1/2. a. Using a significance level of a = 0.10, find the critical value(s). b. Should we reject Hn or should we fail to reject Hn? Click here to vew page 1 of the standarinormal 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. O A. Fail to reject Hg. There is sufficient evidence to warrant rejection of the claim that p= 1/2. O B. Fail to reject Hn. There is not sufficient evidence to warrant rejection of the claim that p= 1/2. OC. Reject Hp. There is not sufficient evidence to warrant rejection of the claim that p= 1/2. O D. Reject Hp. There is sufficient evidence to warrant rejection of the claim that p = 1/2.