A professor of Education is interested in the relationship between students’ visits to office hours held by professors and their final grades in the course. She has obtained voluminous data from Hardknocks University regarding these two variables. These data are cross-tabulated below.
She hypothesizes that the more visits made by a student to office hours, the higher the likely grade. Calculate the chi-square statistics for this table. Are the two variables related? To what extent? Explain your answer.
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