To avoid extra checked-bag fees, airline travelers often pack as much as they can into their suitcase. Finding a rolling suitcase that is durable, has good capacity, and is easy to pull can be difficult. The following table shows the results of tests conducted by Consumer Reports for 10 rolling suitcase; higher scores indicate better overall test results (Consumer Reports website, October2008).

Brand	Price ($)	Score
Briggs & Riley	325	72
Hartman	350	74
Heys	67	54
Kenneth Cole Reaction	120	54
Liz Claiborne	85	64
Samsonite	180	57
Titan	360	66
TravelPro	156	67
Tumi	595	87
Victorinox	400	77

Required:

1. Draw a complete linear regression diagram with price as the independentvariable.

(5 marks)

1. What does the complete linear regression the diagram developed in part (a) indicate about the relationship between twovariables?

(2 marks)

1. Use the least squares method to develop the estimated regressionequation.

(7 marks)

1. Provide an interpretation for the slope of the estimated regressionequation.

(3 marks)

1. The Eagle Creek Hovercraft suitcase has a price of $225. Predict the score for the suitcase using the estimated regression equation developed in part(c).

1. Calculate and interpret the value of randr