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a) Create a scatter plot for the data and draw in the line of best fit. b) Find the equation of the line of best fit using your calculator. c) Using your regression equation, determine the score a student could expect to receive if they had studied for 5.0 hours.

a) Create a scatter plot for the data and draw in the line of best fit. b) Find the equation of the line of best fit using your calculator. c) Using your regression equation, determine the score a student could expect to receive if they had studied for 5.0 hours.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.5: Comparing Sets Of Data
Problem 26PFA
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Student Name Jack Anne 7-11 Harry Sharon John James 13. The following data was collected by a teacher who gave a test. He wonders if there is a relationship between the hours students studied for a test and the score that was achieved. Adam Brandon Brett Brady Charles Darren Dave Dawn Denise Eric Emily Fred Fran Jane Hours Studied 6 7 6,5 8 6,6 8,1 6,8 6,9 d) How 7,3 6,9 8,2 7,2 7,3 6,9 8,6 7,4 7,6 6,8 8 7,4 6,5 Grade 53% 60% 56% 79% 58% 85% 70% 56% 69% 76% 79% 68% 74% many. 72% 84% 78% 76% 65% 92% 80% 65% Test Score 9 a) Create a scatter plot for the data and draw in the line of best fit. b) Find the equation of the line of best fit using your calculator. -20 c) Using your regression equation, determine the score a student could expect to receive if they had studied for 5.0 hours. hours would a student need to study so as to expect a score of 95%. e) Is your answer to d) above reasonable? Explain. Hours Spent Studying f) Is there another variable that needs to be considered in this situation? * I+
Transcribed Image Text:Student Name Jack Anne 7-11 Harry Sharon John James 13. The following data was collected by a teacher who gave a test. He wonders if there is a relationship between the hours students studied for a test and the score that was achieved. Adam Brandon Brett Brady Charles Darren Dave Dawn Denise Eric Emily Fred Fran Jane Hours Studied 6 7 6,5 8 6,6 8,1 6,8 6,9 d) How 7,3 6,9 8,2 7,2 7,3 6,9 8,6 7,4 7,6 6,8 8 7,4 6,5 Grade 53% 60% 56% 79% 58% 85% 70% 56% 69% 76% 79% 68% 74% many. 72% 84% 78% 76% 65% 92% 80% 65% Test Score 9 a) Create a scatter plot for the data and draw in the line of best fit. b) Find the equation of the line of best fit using your calculator. -20 c) Using your regression equation, determine the score a student could expect to receive if they had studied for 5.0 hours. hours would a student need to study so as to expect a score of 95%. e) Is your answer to d) above reasonable? Explain. Hours Spent Studying f) Is there another variable that needs to be considered in this situation? * I+
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