Analyse the following graph. The data shows the results of three groups of 15 athletes who were instructed to complete a basketball shooting exercise (success rate from 20 free throw shots) having received one of three methods of instruction, auditory (shooting technique being verbally described by a coach) , visual (shooting technique being verbally described by a coach) or kinaesthetic (no coaching, just asked to perform the shooting exercise) . Motivation acted as the covariate of interest. How would you describe the regression slopes? 
Definitions:
Mean
A statistical measure representing the central or typical value in a set of data, calculated as the sum divided by the number of observations.
Directional
Pertains to hypotheses or tests that specify the expected direction of the relationship or difference between variables, as opposed to non-directional or two-tailed tests.
Non-directional
A hypothesis that does not specify a direction of difference or association between two variables.
Standard Error
A measure of the statistical accuracy of an estimate, indicating how much the sample mean is expected to vary from the true population mean.
Q4: Keystone species<br>A) appear to be common in
Q5: Among marine systems, primary productivity is highest
Q6: What symbol is used to denote a
Q6: A doctor conducted research into the influence
Q11: In a study of elderly experience of
Q17: Which of the following is not included
Q17: If you were to graphically present the
Q23: The number of hours spent practising and
Q23: Suppose you were interested in the longer-term
Q24: The 1987 Montreal Protocol was an agreement