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At large universities, students in statistics courses are often taught by teaching assistants (TAs) and one section is taught by the course supervisor who is a senior professor. The distribution of grades for the hundreds of students taught by TAs last semester was 32% A, 41% B, 20% C, and 7% D/F. The grades assigned by the senior professor to students in his section were 22 As, 38 Bs, 20 Cs, and 11 D/Fs. You plan to do a chi-square goodness of fit test to see if the senior professor’s grades follow a different distribution. What is the P-value of your test? A. 0.0457 B. 0.1513 C. 0.1826 D. 0.3652

At large universities, students in statistics courses are often taught by teaching assistants (TAs) and one section is taught by the course supervisor who is a senior professor. The distribution of grades for the hundreds of students taught by TAs last semester was 32% A, 41% B, 20% C, and 7% D/F. The grades assigned by the senior professor to students in his section were 22 As, 38 Bs, 20 Cs, and 11 D/Fs. You plan to do a chi-square goodness of fit test to see if the senior professor’s grades follow a different distribution. What is the P-value of your test?

A. 0.0457 B. 0.1513 C. 0.1826 D. 0.3652

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