A lecturer wanted to investigate the relationship between a student's finalmark(in points) for a subject and the average number of hours the student does ofpaid workper week during thetrimester.They gathered a random sample of data and used EXCEL to create the following simple linear regression of marks on paid work:

SUMMARY OUTPUT

Regression Statistics

Multiple R

0.91

R Square

0.82

Standard Error

11.48

Observations

48

Coefficients

Standard Error

Intercept

74.61

5.62

Hours

-2.62

0.14

Estimate the final mark for a student that worked an average of 7 hours of paid work per week.Please give your answer correctly rounded to two decimal places and do NOT include units.