Aside from looking at how high or how low the class standings are, Prof. Juan is also interested in knowing if student performance varies significantly. This is not necessarily a bad indicator. In fact, variation in student performance may reflect the discriminatory ability of course assessments. In the past (face-to-face set-up), it is common to encounter some extreme class standings and disparities in the scores. Prof. Juan thinks this is not the case now and that the variance of class standings is less than the usual, 100 squared points. Recall from No. 1 that normality assumption on class standings was satisfied. Using the chi-squared test for variance with a p-value equal to 2.095e-12, it can be said that there is ________ evidence that the variance of class standings is ______ 100 squared points. This may indicate the_________discriminatory power of the assessments in Prof. Juan’s course materials.
Aside from looking at how high or how low the class standings are, Prof. Juan is also interested in knowing if student performance varies significantly. This is not necessarily a bad indicator. In fact, variation in student performance may reflect the discriminatory ability of course assessments. In the past (face-to-face set-up), it is common to encounter some extreme class standings and disparities in the scores. Prof. Juan thinks this is not the case now and that the variance of class standings is less than the usual, 100 squared points. Recall from No. 1 that normality assumption on class standings was satisfied. Using the chi-squared test for variance with a p-value equal to 2.095e-12, it can be said that there is ________ evidence that the variance of class standings is ______ 100 squared points. This may indicate the_________discriminatory power of the assessments in Prof. Juan’s course materials.
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