Stat 30100
Bonus Real World for Extra credit
Brady Spence
This problem set uses the same dataset as before, MSLGrades.xls, with the student
weight information.
We will use Statcrunch to perform all statistical analyses on the dataset.
Open the MSLGrades.xls dataset in Statcrunch.
Copy and paste all output into the document.
Make sure to answer all questions fully.
We want to model the Final Grade percentage by the amount of time spent by the
students on study plan weekly.
At first Create the variable WeeklySPTime just like you did for RW2.
1.) Draw a scatterplot of WeeklySPTime and FinalGrade and paste the
statcrunch output.
2.) What is the explanatory variable?
WeeklySPtime
3.) What is the response variable?
FinalGrade
4.) Describe the form, direction, and strength of the scatterplot.
This scatterplot shows all the dots occurring in the positive half, they're
spread out, but you can see some grouping in the upper left of this
graph. Because these dots are spread out, we can conclude that this has
a weaker relationship. Also, a value of R near 0 whether positive or