Studenttest marks(out of 100) and the number of hours they do paid work, were recorded for a subject.Excel was used to investigate the potential linear relationship between these two variables.A section of the summary output is provided below:

Regression statistics

Multiple R

0.47

R square

0.2209

Observations

47

Coefficients

Standard Error

Intercept

65.11

6.26

Hours of paid work

-5.42

0.56

What is the value of the slope?Give your answer correct to two decimal places.Do NOT include units.