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Question 15
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A lecturer wanted to investigate the relationship between a student’s final mark (in points) for a subject and the number of hours the student studied in the trimester, outside of class time. They gathered a random sample of data and used EXCEL to create the following simple linear regression of marks on hours:
SUMMARY OUTPUT Regression Statistics Multiple R 0.91 R Square 0.82 Standard Error 11.48 Observations 95 Coefficients Standard Error Intercept 4.81 4.99 Hours 0.85 0.13
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Estimate the final mark for a student that studied a total of 36 hours outside of class time for this subject. Please give your answer correctly rounded to two decimal places and do NOT include units.
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