Math

StatisticsQ&A LibraryRun a regression analysis on the following data set, where y is the final grade in amath class and x is the average number of hours the student spent working on matheach weekhours/weekGradeXУ50.6453.8764.87107682.41182.81284.61415881684.41786.8State the regression equation y = m x + b, with constants accurate to two decimalplacesPreviewWhat is the predicted value for the final grade when a student spends an average of11 hours each week on math?Round to 1 decimal place.GradeQuestion

Asked Nov 13, 2019

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How do find the answer on paper and the TI84

Step 1

**Computation of regression line equation:**

Step-by-step procedure to find the regression line equation using TI-84 calculator:

- Click on
**STAT > Enter> Type data values of Hours/Week x under L1 and Grade y under L2.** - Enter
**STAT > CALC> 4: LinReg(ax+b)** - Choose
**XList**as**L1**,**YLIST**as**L2**. - Select
**Calculate**and**Enter.**

From the output of TI-84 calculator, the value of a is 2.977632362 and the value of b is 41.77275431.

a)

Thus, the regression equation is **y =2.977632362x + 41...**

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