When a company advertises on the Internet, the company pays the operators of sea

Question

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 1,800 clicks coming into a company's site during a week identified 285 of these clicks as fraudulent. Complete parts (a) through (c) below.

(c) If a company pays the operators of a search engine $3.75 for each click, give a 95% confidence interval for the mean cost per click due to fraud.

The 95% confidence interval for the mean cost is [$__ to $__] (Round to the nearest cent as needed.)

Explanation / Answer

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 1,800 clicks coming into a company's site during a week identified 285 of these clicks as fraudulent. Complete parts (a) through (c) below.

(c) If a company pays the operators of a search engine $3.75 for each click, give a 95% confidence interval for the mean cost per click due to fraud.

The 95% confidence interval for the mean cost is [$__ to $__] (Round to the nearest cent as needed.)

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