Question

THE ELECTION POLL REPORTED THAT A CANDIDATE HAD AN APPOROVAL RATIONG OF 30% WITH A MARGING OF ERROR E OF 4%. CONSTRUCT A CONFINDENCE INTERVAL FOR THE PROPORTIONS OF ADULTS WHO APPROVE OT THE CANDIDATE.

Answer 1

CI = .30 + or - .04
Therefore, interval is from .26 to .34 for the proportions.

Answer 2

Use the random-number table to simulate the outcomes of tossing a quarter 25 times. Assume that the quarter is balanced (i.e., fair). (Start at row 1, and let 0, 1, 2, 3, 4 indicate heads and 5, 6, 7, 8, 9 indicate tails. Enter H for heads and T for tails, and enter your answer as a comma-separated list.)