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(Solved): We have 3 teachers who teach the subject of mathematics, a study was carried out to to know if there ...
We have 3 teachers who teach the subject of mathematics, a study was carried out to
to know if there is a significant difference between the final grades that each teacher obtains in a uniform final exam of the subject, for this study 4 students were selected from each
group whose grades are.This problem will be solved with a confidence level of 95% (a = 0.05 ). (DO NOT USE SPREADSHEETS / SHOW OPERATIONS)
\begin{tabular}{|l|l|l|} \hline Profesor A & Profesor B & Profesor C \\ \hline 80 & 72 & 81 \\ \hline 85 & 78 & 70 \\ \hline 93 & 80 & 71 \\ \hline 90 & 83 & 75 \\ \hline \end{tabular}
Expert Answer
Answer:- The main aim is to test whether there is any significant difference in the mean score among three different teachers at 5% level of significa