Question: 5. A small study is carried out to see if there is any relationship between the number of years a solicitor has been practising

5. A small study is carried out to see if there is any relationship between the number of years a solicitor has been practising and the hourly rate they charge. A sample of data for 3 solicitors is presented below: Years of experience (x) 2 4 12 Hourly rate in (y) 145 170 225 Calculate the following for the data set: (a) The five sums Ex. Ey. Ex. Ey. Exy (b) 8 and 9 (c) S... Syy and Sy (d) The product-moment correlation coefficient, r. to 2 decimal places the nature of the correlation. (5 marks) (2 marks) (3 marks) and state (2 marks) (e) The equation of the regression line ya + bx, and use it to estimate the hourly rate of a solicitor with 8 years experience. (3 marks) (15 marks)

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