Question

UploadUS crimedata, make a chart with x-axis being murder in Utah andy-axis being the murder in Colorado. Answer the questions:

I) Plot the chart and fitted line. What is the slope interpretation?

• a. It predicts the number of murders in Utah when there are no murders in Colorado.
• b. It predicts the increase in number of murders in Colorado for each additional murder in Utah.
• c. It predicts the increase in number of murders in Utah for each additional murder in Colorado.
• d. It predicts the number of murders in Colorado when there are no murders in Utah.
• e. None of these.

II) The fitted line exhibits positive slope. Is this expected or not, and why?

• a. This is not expected, the change in crime numbers in different states should not be related.
• b. Yes this is expected, since slope is positive.
• c. Yes, it is expected since R-square is very good.
• d. This is not expected since these two are very different states.
• e. None of these.

III) What does each dot stands for?

• a. A year
• b. A city
• c. A murder
• d. None of these.