A professor of Education is interested in the relationship between students' visits to office hours held by professors (online or in person) and students' final grades in the course. She has obtained voluminous data fromHardnocksUniversity regarding these two variables. These data are cross-tabulated below.

	Visits during Office Hours
Grade	None	One or Two	Three or More
C or worse	527	520	418
B	527	526	465
A	480	480	500
Total	1534	1526	1383

She hypothesizes that the more visits made by a student to office hours, the higher the likely grade.

1. Percentage the table. Based on this data, is there support for the hypothesis ?

2. Now calculate the chi-square. Does this change your mind ? (Remember the distinction between practical and statistical significance; as a public manager, do you think attending office hours is a smart strategy for improving grades, based on this data alone?)