1. Pedro wants to determine a 99 percent confidence interval for the true proportion of times he rolls a 6 (using a fair, 6-sided die). How many rolls must Pedro make to get a margin of error less than or equal to .05? [To find n, use the guessed value p* = 1/6 for the sample proportion and the values for z* from Table C.] [Round to the smallest integer that works.] n =____.
2. Dylan wants to determine a 80 percent confidence interval for the true proportion of high school students in the area who attend their home basketball games. How large of a sample must he have to get a margin of error less than 0.04? [To find n, use the value p* = 1/2 for the sample proportion and the values for z* from Table C.][Round to the smallest integer that works.] n =____.