Average demand for iPods in the Rome, Italy. Apple store is 800 units per month. The May monthly index is $1.25$. What is the seasonally adjusted sales forecast for May? a) 640 units

b) $798.75$ units

c) 800 units

d) 1,000 units

e) cannot be calculated with the information given

The following table gives the map coordinates and the shipping loads for a set of cities that we wish to connect through a central hub.

If the shipments from city A triple, how does this change the coordinates?

Thirteen students entered the business program at Sante Fe College 2 years ago. The following table indicates what each student scored on the high school SAT math exam and their grade-point averages (GPAs) after students were in the Sante Fe program for 2 years:

If a student scores a 350 , what do you think his or her GPA will be?

Bus and subway ridership for the summer months in London, England, is believed to be tied heavily to the number of tourists visiting the city. During the past 12 years, the data on the next page have been obtained:

What is the model's correlation coefficient and coefficient of determination?

Sales of tablet computers at Ted Glickman's electronics store in Washington, D.C., over the past 10 weeks are shown in the table below:

Compute the tracking signal.

A skeptical manager asks what medium-range forecasts can be used for. Give the manager three possible uses/purposes.

Thirteen students entered the business program at Sante Fe College 2 years ago. The following table indicates what each student scored on the high school SAT math exam and their grade-point averages (GPAs) after students were in the Sante Fe program for 2 years:

Is there a meaningful relationship between SAT math scores and grades?

Bus and subway ridership for the summer months in London, England, is believed to be tied heavily to the number of tourists visiting the city. During the past 12 years, the data on the next page have been obtained:

What is the standard error of the estimate?

Sales of tablet computers at Ted Glickman's electronics store in Washington, D.C., over the past 10 weeks are shown in the table below:

Compute the MAD.

A check-processing center uses exponential smoothing to forecast the number of incoming checks each month. The number of checks received in June was 40 million, while the forecast was 42 million. A smoothing constant of $.2$ is used.

Why might this be an inappropriate forecasting method for this situation?

Bus and subway ridership for the summer months in London, England, is believed to be tied heavily to the number of tourists visiting the city. During the past 12 years, the data on the next page have been obtained:

Explain the predicted ridership if there are no tourists at all.

Sales of tablet computers at Ted Glickman's electronics store in Washington, D.C., over the past 10 weeks are shown in the table below:

Forecast demand for each week, including week 10. using exponential smoothing with $\alpha=.5$ (initial forecast $=20$ ).

A check-processing center uses exponential smoothing to forecast the number of incoming checks each month. The number of checks received in June was 40 million, while the forecast was 42 million. A smoothing constant of $.2$ is used.

If the center received 45 million checks in July, what would be the forecast for August?

Bus and subway ridership for the summer months in London, England, is believed to be tied heavily to the number of tourists visiting the city. During the past 12 years, the data on the next page have been obtained:

What is expected ridership if 10 million tourists visit London in a year?