Advertisers contract with Internet service providers and search engines to place ads on websites. They pay a fee based on the number of potential customers who click on their ad. Unfortunately, click fraud--the practice of someone clicking on an ad solely for the purpose of driving up advertising revenue--has become a problem. According to BusinessWeek, 44% of advertisers claim they have been a victim of click fraud. Suppose a simple random sample of 290 advertisers will be taken to learn more about how they are affected by this practice. Use z-table a. What is the probability that the sample proportion will be within 20.05 of the population proportion experiencing dick fraud? (to 4 decimals) b. What is the probability that the sample proportion will be greater than 0.477 (to 4 decimals) Advertisers contract with Internet service providers and search engines to place ads on websites. They pay a fee based on the number of potential customers who click on their ad. Unfortunately, click fraud--the practice of someone clicking on an ad solely for the purpose of driving up advertising revenue--has become a problem. According to BusinessWeek, 44% of advertisers claim they have been a victim of click fraud. Suppose a simple random sample of 290 advertisers will be taken to learn more about how they are affected by this practice. Use z-table a. What is the probability that the sample proportion will be within 20.05 of the population proportion experiencing dick fraud? (to 4 decimals) b. What is the probability that the sample proportion will be greater than 0.477 (to 4 decimals)