# Statistics

• Jul 30th 2007, 12:56 AM
princess_anna57
Statistics
Individuals from a business training programme are monitored in their first year of business, and their achievement in that first year quantified using a range of tests. The training programme was based on a mentoring system, with young trainees paired in every case with older, more experienced people who were training for a career change. The data for the individuals are below.

Team 1 2 3 4 5 6 7 8
Young Trainee 30 44 21 17 25 22 16 28
Mentor 23 37 7 18 10 15 13 29

a) Draw a scatterplot of the data, using the mentor's scores to predict the young trainee's scores.
b) Calculate Pearson's correlation for the data, and interpret your figure.
c) Now calculate Spearman's correlation coefficient for the data.
d) Which correlation is most appropiate for the situation, and why?

NOTE: For the data, 30 and 23 under 1, 44 and 37 under 2, etc.

• Jul 31st 2007, 08:03 AM
earboth
Quote:

Originally Posted by princess_anna57
Individuals from a business training programme are monitored in their first year of business, and their achievement in that first year quantified using a range of tests. The training programme was based on a mentoring system, with young trainees paired in every case with older, more experienced people who were training for a career change. The data for the individuals are below.

Team 1 2 3 4 5 6 7 8
Young Trainee 30 44 21 17 25 22 16 28
Mentor 23 37 7 18 10 15 13 29

a) Draw a scatterplot of the data, using the mentor's scores to predict the young trainee's scores.
b) Calculate Pearson's correlation for the data, and interpret your figure.
c) Now calculate Spearman's correlation coefficient for the data.
d) Which correlation is most appropiate for the situation, and why?

NOTE: For the data, 30 and 23 under 1, 44 and 37 under 2, etc.

Hello,

I've attached a table and a diagram to give you the results. I assume that you know how to calculate the correlation coefficients and how to transform a table with raw data into a diagram. So these results are for confirmation only.