Use a 1-test to test the claim about the population mean u at the given level of significance a using the given sample statistics Assume the population is normally distributed Claim 28, a 0.05 Sample statistics X-23 8, s 4.3,n-13 What are the null and alternative hypotheses? Choose the correct answer below OA. Hop28 H-28 CH 28 What is the value of the standardized test statistic? The standardized test statistic is (Round to two decimal places as needed.) OB Ho #228 H, 28 OOH 20 H-28