a national business magazine reports that the mean age of retirement for women executives is 63.2. 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 78 recently retired women executives and found that they had a mean age of retirement of 64.2. assuming the population standard deviation is 4.4 years, is there sufficient evidence to support the organization’s belief at the 0.02 level of significance?