Question

Asked Dec 2, 2019

26 views

Run a regression analysis on the following data set, where

y

y

is the final grade in a math class and

x

x

is the average number of hours the student spent working on math each week.

hours/week

x

Grade

y

4

45.6

5

48

6

61.4

10

77

10

77

12

84.8

13

76.2

16

99.4

19

100

20

100

State the regression equation

y

=

m

⋅

x

+

b

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 15 hours each week on math?

Grade = Round to 1 decimal place.

Step 1

According to the provided information, the final grade in a math class and the number of hours the student spent working on math each week are given.

Here, Number of hours is independent variable (x) and Grade is dependent variable (y)

The regression line can be expressed as:

Step 2

The regression coefficient can be calculated as:

Step 3

The required data can b...

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