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?