A national business magazine reports that the mean age of retirement for women executives is 61.2. A women's rights organization believes that this value does not accurately depict the current trend in retirement. To test this, the group polled a simple random sample of 97 recently retired women executives and found that they had a mean age of retirement of 60.6. Assuming the population standard deviation is 2.8 years, is there sufficient evidence to support the organization's belief at the 0.02 level of significance? Step 1 of 3 : State the null and alternative hypotheses for the test. Fill in the blank below. Ho : 1 = 61.2 Ha : H 61.2