An undergraduate psychology course only gives the grades of A, B, C, or F. The department has determined that there should be 20% A's given, 30% B's given, 40% C's, and 10% F's given as final grades for the course. For the spring 2021 semester, 400 students took the course and 100 students received A's, 100 students received B's, 150 students received C's and 50 students received F's, so taose are my obsérved frequencies. We want to do a Chi-square Multinomial Goodness of Fit test to see if our grading guidelines match up with what is actually happening. What is the expected frequency for the grade of C category? Round your answer to the tenths position.

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An undergraduate psychology course only gives the grades of A, B, C, or F.
The department has determined that there should be 20% A's given, 30% B's given, 40% C's, and
10% F's given as final grades for the course. For the spring 2021 semester, 400 students took the
course and 100 students received A's, 100 students received B's, 150 students received C's and 50
students received F's, so taose are my obsérved frequencies. We want to do a Chi-square
Multinomial Goodness of Fit test to see if our grading guidelines match up with what is actually
happening.
What is the expected frequency for the grade of C category? Round your answer to the tenths
position.
Transcribed Image Text:An undergraduate psychology course only gives the grades of A, B, C, or F. The department has determined that there should be 20% A's given, 30% B's given, 40% C's, and 10% F's given as final grades for the course. For the spring 2021 semester, 400 students took the course and 100 students received A's, 100 students received B's, 150 students received C's and 50 students received F's, so taose are my obsérved frequencies. We want to do a Chi-square Multinomial Goodness of Fit test to see if our grading guidelines match up with what is actually happening. What is the expected frequency for the grade of C category? Round your answer to the tenths position.
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