Open the data called “Attendance Vs. Grade” in StatCrunch. …
Open the data called “Attendance Vs. Grade” in StatCrunch. We want to test to see if the Percent of days Attended is positively correlated with the final grade in the class. Link a. Identify and Interpret the Slope in your linear equation. b. What is the r-value for this data? What does that tell you about the relationship between %Attendance and Total Grade? c. What is the estimate of standard error? Interpret it in a sentence. d. Use the equation of the regression line to make a prediction for the Grade for a student who’s %Attendance is 70. (The numbers are already in percent…do not convert to .70) e. Regardless if the data passed all the assumptions test the claim that Grade and %Attendance are positively correlated. State the null and alternative hypothesis. f. What is the Value of the test statistic and the p-value? Make a decision regarding the Null hypothesis using a 5% significance level. g. Write a conclusion addressing the claim.