Question

Do part b)

When a company advertises on the Internet, the company pays the operators of search engines each time an ad for the company appears with search results and someone clicks on the link. Click fraud is when a computer program pretending to be a customer clicks on the link. An analysis of 1,400 clicks coming into a company's site during a week identified 225 of these clicks as fraudulent. Complete parts (a) through (c) below. D. The week must be randomly selected ldentify the population below A. All clicks into this company's site B. All clicks on ads placed in search results ° C. All companies that advertise on the Internet OD. All fraudulent clicks (b) Show the 95% confidence interval for the population proportion of fraudulent clicks in a form suitable for sharing with a nontechnical audience The 95% confidence interval for the population proportion is (Round to one decimal place as needed.) % to

Answer 1

Given that, an analysis of 1400 clicks coming into a company's site during a week identified 225 of these clicks as fraudlent.

That is, x = 225 and n = 1400

Using TI-84 calculator we get, 95% confidence interval for the population proportion ( p ) is, ( 0.141, 0.180)

Therefore, the 95% confidence interval for the population proportion is, ( 14.1% to 18.0% )