Question

o A teacher finds that final grades in the statistics department are distributed as: A.25% 0.25%; 0,40% 0,5%; 7,6%. At the end of a randomly selected semester, the following grades were recorded. Calculate the chi-square test statistic y used to determine if the grade distribution for the department is different than expected. Use a=0.01. Grade А B с D F Number 42 36 60 8 14 O A 6.87 OB. 4.82 OC. 3.41 OD 5.25

Answer 1

Thank you.