researcher wishes to estimate the percentage of adults who support abolishing the penny. What sire sample should be obtained if he wishes the estimate to be within 4 percentage oints with 90% confidence a) he uses a previous estimate of 22%? ) he does not use any prior estimates? ick here to view the standard normal distribution table (page 1). Click here to view the standard normal detribution table (page 2). )n(Round up to the nearest integer) CD