Question

Run a regression analysis on the following data set, where yis the final grade in a...

Run a regression analysis on the following data set, where yis the final grade in a math class and xis the average number of hours the student spent working on math each week.

hours/week
x
Grade
y
5 53
5 50
8 60.2
9 60.6
9 68.6
10 68
11 64.4
11 71.4
20 100
20 100



State the regression equation y=m⋅x+b, with constants accurate to two decimal places.


What is the predicted value for the final grade when a student spends an average of 11 hours each week on math?
Grade = Round to 1 decimal place.

Homework Answers

Answer #1

The statistical software output for this problem is:

Hence,

Regression equation will be:

y = 3.24 x + 34.67

Predicted value of final grade = 70.3

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