Assignment 1 Correlation and Prediction_R3

Module 3 – Correlation and Prediction Use the following data to answer the questions 1 through 5. Enter the raw data below in SPSS (you do not have to save the file). Semester Grade Number of Absences 85 7 98 1 84 5 86 14 90 4 71 15 82 6 70 3 91 1 56 13 86 3 87 4 70 9 70 10 82 7 98 0 81 1 97 0 95 8 99 1 98 0 92 0 86 3 90 1 82 7 1) What is the mean and standard deviation (s) for semester grade variable? Answer ________ a. 86.00 ± 10.89 b. 85.04 ± 10.89 c. 86.00 ± 12.00 d. 85.04 ± 12.00 2) Run the correlation between the two variables. What is the correlation coefficient, r ? Answer ________ a. -.690 b. .219 c. -.379 d. .001 3) Draw a scatterplot figure illustrating the correlation that you found above. Label the figure.