9.1 WS #4. Compute the margin of error, given the standard error and the confidence level (assume + z): a. Standard Error = 6.7, Confidence Level = 88% b. Standard Error = 10.2, Confidence Level = 90% c. Standard Error = 56.4, Confidence Level = 99% 2. In advance of a national election, a large polling 100- agency pays to have 100 valid identical polls conducted about a particular issue. The following chart depicts 75- the 100 confidence intervals, all drawn from the same population. p_inside a. How many of the No polls did not Yes contain the true value of p = 0. 45? 25 b. An identical confidence level was used for all of these polls. What was this value? 0.40 0.44 0.48 estimate 0.52