7 An anatomy teacher hypothesizes that the final grades in h

7 An anatomy teacher hypothesizes that the final grades in her class are distributed as 10% A?s, 23% B?s, 45% C?s, 14% D?s, and 8% Ps. If at the end of the semester she has the following grades was she correct in her hypothesis? Use alpha - 005 .

Solution

Null hypothesis: The grades are in the expected or given distribution

Alternate hypothesis: The grades are not in the expected or given distribution

Goodness of Fit Test

observed

expected

O - E

(O - E)

Goodness of Fit Test
	observed	expected	O - E	(O - E)