The following indicates the number of hours that Johnny spent studying the week before each exam...

The following indicates the number of hours that Johnny spent studying the week before each exam in his classes along with the corresponding exam scores:
Hours Studying: 4 5 8 12 15 19
Score on Exam: 54 49 60 70 81 94

Find the residual corresponding to the explanatory value of 8.

a) 69.8263

b) −0.82

c) −69.8263

d) −126.34

e) 0.82

Solutions

Expert Solution

The statistical software output for this problem is:

Hence,

Actual value = 60

Predicted value = 60.82

Therefore,

Residual = Actual - Predicted = 60 - 60.82 = -0.82

Option B is correct.

orchestra answered 1 year ago

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