What is the probability that the sample proportion

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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 41 % of advertisers claim they have been a victim of click fraud. Suppose a simple random sample of  300 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  0.05of the population proportion experiencing click fraud? (to 4 decimals)

b. What is the probability that the sample proportion will be greater than 0.49? (to 4 decimals)

Reference no: EM132399920

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