Older people often have a hard time finding work. aarp reported on the number of weeks it takes a worker aged 55 plus to find a job. the data on number of weeks spent searching for a job contained in the file jobsearch are consistent with the aarp findings (aarp bulletin, april 2008). a) provide a point estimate of the population mean number of weeks it takes a worker aged 55 plus to find a job. b) at 95% confidence, what is the margin of error? c) what is the 95% confidence interval estimate of the mean? d) discuss the degree of skewness found in the sample data. what suggestion would you make for a repeat of this study?