Statistics Help: The question reads, On May 23, 2013, Gallup reported that of the 1,005 people surveyed, 76% of US workers believe that they will continue working past retirement age. The confidence level for this study was reported at 95% with a +/- 3% margin of error. Answer the following:

a. Determine the estimated proportion from the sample.

b. Determine the sample size.

c. Identify CL and a.

d. Calculate the error bound based on the information provided.

Thank you.