Question

You have been asked by the CEO of your company to develop a measurement to optimize the company's web site based on the following information. Be sure to do the calculations for all three columns of data.

Traffic in Number of Visits per Month

Monthly Revenue

Monthly Cost per Visit

January

22,314

243,898

0.38

February

26,789

298,761

0.24

March

36,751

389,657

0.21

April

48,301

546,792

0.19

May

51,329

675,982

0.13

June

57,634

786,455

0.11

July

63,498

897,645

0.09

August

69,045

989,732

0.06

Calculate n =

3pts

Calculate the Mean =

3pts

Calculate the Standard Deviation =

3pts

Given a 95% Level of confidence, what is the Level of Significance (alpha)?

3pts

Calculate the Margin of Error

3pts

Calculate the Upper Limit

3pts

Calculate the Lower Limit

3pts

Calculate the correlation coefficient between Traffic in Visits per Month and Monthly Revenue

3pts

Calculate the correlation coefficient between Traffic in Visitors per Month and Monthly Cost per Visitor

3pts

Graph a Scatterplot comparing Monthly Revenue to Visitor Traffic.

4pts

Graph a Scatterplot comparing Traffic in Visitors per Month to Cost per Visit.

4pts

Based on your calculations, which one has a positive relationship? Explain. (5pts)

Based on your calculations, would you predict revenue to rise or fall? Explain. (5pts)

A researcher states that a sequel to a successful movie will also be a success. Explain why this correlation is correct. (5pts)

A researcher states that games with high levels of difficulty discourage players. Why is this correlation inaccurate? (5pts)

A publication states that fireworks in a concert increase revenue. Is this a reasonable correlation? Why or why not? (6pts)

A study reveals that games inhibit critical thinking. Is this a reasonable correlation? Why or why not? (6pts)

Answer 1