A magazine provided results from a poll of 1500 adults who were asked to identify their favorite pie. Among the 1500 respondents, 13% chose chocolate pie, and the margin of error was given as 4 percentage points. What values do p, q, n, E, and p represent? If the confidence level is 90%,

what is the value of ?

If the confidence level is 90%, what is the value of ? =_ (Type an integer or a decimal. Do not round.)