Some states now allow online gambling. As a marketing manager for a casino, you need to determine the percentage of adults in those states who gamble online. How many adults must you survey in order to be % confident that your estimate is in error by no more than percentage ? Complete parts (a) and (b) below. Question content area bottom Part 1 a. Assume that nothing is known about the percentage of adults who gamble online.

b. Assume that 18% of all adults gamble online.