MTH233/statistics UOP
posted by sue .
Clickfraud has become a major concern as more and more companies advertise on the Internet. When Google places an ad for a company with its search results, the company pays a fee to Google each time someone clicks on the link. That’s fine when it’s a person who’s interested in buying a product or service, but not so good when it’s a computer program pretending to be a customer. Analysis of 1200 clicks coming into a business during a week identified 175 of these clicks as fraudulent.
• What is the difference between a critical value and a test statistic? How do you decide which test statistic to use?
• When is it appropriate to use a onetailed test versus a twotailed test? Does the direction of the test affect statistical significance? Explain.
• What is a Pvalue? What does a Pvalue of 0.0000001 mean?
• What are degrees of freedom? Illustrate with one new example.
• Under what conditions does it make sense to treat these 1200 clicks as a sample? What would be the population?
• Show the 95% confidence interval for the population proportion of fraudulent clicks in a form suitable for sharing with a nontechnical audience.
Based on the scenario above, if a company pays Google $4.50 for each click, give a confidence interval (again, to presentation precision) for the mean costs due to fraud per click
Respond to this Question
Similar Questions

Presidents
Can someone please find me a powerpoint presentation over President Andrew Johnson? 
Business
how do the purpose and function of the board of directors in a human service organization affects daytoday operations Normally, a board of directors sets overall policies, receives fiscal and other reports to review, hires major … 
History
I'm doing a project on Medieval nights please help! How did chivalry reflect medieval culture especially religon? 
MTH233/statistics UOP
A car company says that the mean gas mileage for its luxury sedan is at least 21 miles per gallon. You believe the claim is incorrect and find that a random sample of five cars has a mean gas mileage of 19 miles per gallon and a standard … 
marketing
Your manager has asked you to investigate the Internet marketing strategies used by the company's major competitors. Use the library, the Internet, and any other resources to research competitors and prepare a presentation. Here are … 
Anonymous
Maya is going to rent a truck for one day. There are two companies she can choose from, and they have the following prices. Company A charges and allows unlimited mileage. Company B has an initial fee of and charges an additional for … 
college algebra
Deshaun is going to rent a truck for one day. There are two companies he can choose from, and they have the following prices. Company A has no initial fee but charges .70 cents for every mile driven. Company B charges an initial fee … 
Google Search
Dear all, If you do not understand a science, math, writing, grammar, history, etc. problem, you can easily find the explanation of the concept you are struggling in on the internet or Google. 
Finance
Which of the following best states the difference between seed capital and startup capital? 
Can some one check my finance answers please
Which of the following best states the difference between seed capital and startup capital?