regression

In order to investigate the relationship between insurance companies’ annual cost-income ratios and the percentage of non-executive directors on the board, a sample of 12 medium sized insurance firms was taken and the following sums were calculated from the sample data:

∑x 5 440,

∑y 5 3.75,

∑xy 5 108.25:

where y represents the annual cost-income ratio and x represents the percentage of nonexecutive directors on the board.

(a) Taking the annual cost-income ratio (y) as the dependent variable and the percentage of non-executive directors on the board (x) as the independent variable, calculate the equation of the least-squares regression line.

(b) Using your estimated regression equation in part (a):

(i) Predict the annual cost-income ratio for a firm with a board consisting of ten directors, four of whom are non-executive directors.

(ii) Comment on the likely accuracy of your prediction in part (i).

For a custom-written paper on the above topic, place your order now!

What We Offer
• On-time delivery guarantee
• PhD-level professionals
• Automatic plagiarism check
• 100% money-back guarantee
• 100% Privacy and Confidentiality
• High Quality custom-written papers

find the cost of your paper
Order now to get your homework done

Clarify the role of each legally mandated attendee on the Individualized Education Program team

This discussion assesses your ability to clarify the role of each legally mandated attendee on the Individualized Education Program team. This assessment also supports your achievement of Course Learning Outcome….