a. State the confidence interval using the MoE. What does this confidence interval estimate?

b. Use the Confidence Interval template (found in this module's to calculate the confidence interval based on the sample size and the number of successes (the proportion you are interested in). Use a confidence level of 95%.

c. What is the calculated confidence interval? How does this compare to the interval in part a using the poll's margin of error?.

d. Calculate the sample size needed for the given margin of error and see if the poll had enough people surveyed. Use the sample size template.

Data:

Sample Size for Proportion Estimate of True Proportion Cells that require student input Excel Intermediate Calculations Excel Calculated Results Major Headings Samp ling Error Condence Level Minor Headings Reference ;' Check Points Calculated Sample Size