Statistics

# Statistics - another This means that the more a student...

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Erica Free Professor Qin 22 May 2009 Math 1070 Maymester Project 2- Report Study Hours and Test Scores The data set I have chosen is one that recorded fifteen students’ grades and test scores throughout the semester. The students average test scores represent the grades. The study hours are recorded according to the number of hours the students said they studied on a weekly basis. The purpose of the scatter plot is to see whether the amount of studying a student does has a positive correlation, negative correlation, or no correlation at all. In the chart this information shows that the data is positively correlated to one
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Unformatted text preview: another. This means that the more a student studies the more likely the student is going to get higher test grades. The study hours are represented by the x-axis, or the explanatory variable, and the average test scores are represented by the y-axis, or the response variable. The regression line is there to show the formation of the dots on the scatter plot. The association between the two variables can be seen by the regression line and the correlation coefficient. The correlation coefficient found in excel is 0.888522864. This shows how strong of a correlation the data set has....
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