Professor Teaching Assistant #1 Teaching Assistant #2 Student 1 0.70 1.27 1.27 Student 2 0.83 -0.64 -1.55 Student 3 -0.98 0.38 -0.14 Student 4 2.21 0.80 0.92 Student 5 -0.54 -1.34 -1.06 Student 6 0.43 0.10 0.30 Student 7 -1.03 -2.09 -1.50 Student 8 -0.01 0.85 1.14 Student 9 -0.54 0.48 0.57 Student 10 -1.07 0.20 0.04 The professor is going to use the z-scores to calculate the correlation coefficient between her scores and those of her TAs. To calculate the correlation coefficient, she sums the products of the z-scores. The professor should divide this sum by 10 The professor constructed a table of correlation coefficients between her scores and those of her TAs. Select the correct missing correlation. Professor Teaching Assistant #1 Teaching Assistant #1 Teaching Assistant #2 0.91 0.42 Based on the correlation tab 0.43 professor should arrive at which of the following conclusions? 0.38 The professor and her TAs are well calibrated. O The professor and 0.21 are well calibrated, but TA #1 is off. O The two TAs are well calibrated with each other but not with the professor. O The professor and TA #1 are well calibrated, but TA #2 is off.

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