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Mathematics, 19.03.2021 07:30 saintsfan2004
QUICK! STATS HW QUESTION NEED WORK TOO
We expect that students who do well on the midterm exam in a course will usually also do well on the final exam. Gary Smith of Pomona College looked at the exam scores of all 346 students who took his statistics class over a 10-year period. Assume that both the midterm and final exam were scored out of 100 points.
(a) State the equation of the least-squares regression line if each student scored the same on the midterm and the final.
(b) The actual least-squares line for predicting final- exam score y from midterm-exam score x was y^ = 46.6 + 0.41x. Predict the score of a student who scored 50 on the midterm and a student who scored 100 on the midterm.
(c) Explain how your answers to part (b) illustrate regression to the mean.
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QUICK! STATS HW QUESTION NEED WORK TOO
We expect that students who do well on the midterm exam in a...
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