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Xr15-10 Grades assigned by an economics instruc- tor have historically followed a symmetrical distri- bution: 5% As, 25%
Posted: Mon Jul 11, 2022 11:40 am
by answerhappygod
- Xr15 10 Grades Assigned By An Economics Instruc Tor Have Historically Followed A Symmetrical Distri Bution 5 As 25 1 (63.99 KiB) Viewed 50 times
Xr15-10 Grades assigned by an economics instruc- tor have historically followed a symmetrical distri- bution: 5% As, 25% B's, 40% C's, 25% D's, and 5% Fs. This year, a sample of 150 grades was drawn and the grades (1 = A, 2 = B, 3 = C, 4 = D, and 5 = F) were recorded. Can you conclude, at the 10% level of significance, that this year's grades are distributed differently from grades in the past?