a national business magazine reports that the mean age of retirement for women executives is 62.7. 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 63.5. assuming the population standard deviation is 4.0 years, is there sufficient evidence to support the organization’s belief at the 0.01 level of significance?
