Suppose that we randomly sample 112 high school students to investigate an association between involvement in extracurricular activities and grades. We use the data to conduct a chi-square test of independence at the 5% level. In this results table, the observed count appears above the expected count in each cell. What can we good grades | poor grades | Total low 11 13 9.518 3.482 moderate 68 23 91 66.63 24.38 high 3 8 conclude? 5.857 2.143 Total 82 30 112 Chi-Square test: Statistic |DF Value P-value Chi-square 2 6.170857 0.0457 O There is not a statistically significant association between involvement in extracurricular activities and grades. O There is a statistically significant association between involvement in extracurricular activities and grades. O_Involvement in extracurricular activities helps students to perform better academically Nothing, because the conditions for use of the chi-square test are not met