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Time in surgery: Records at a hospital show that a certain surgical procedure takes an average of 172.6 minutes with a standard deviation of 8.5 minutes. If the data are approximately bell-shaped, between what two values will about 68% of the data fall? About 68% of the data will fall between and .

Time in surgery: Records at a hospital show that a certain surgical procedure takes an average of 172.6 minutes with a standard deviation of 8.5 minutes. If the data are approximately bell-shaped, between what two values will about 68% of the data fall? About 68% of the data will fall between and .

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter4: Equations Of Linear Functions
Section4.5: Correlation And Causation
Problem 15PPS
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Time in surgery: Records at a hospital show that a certain surgical procedure takes an average of 172.6 minutes with a standard deviation of 8.5 minutes. If the data are approximately bell-shaped, between what two values will about 68% of the data fall? About 68% of the data will fall between and
Transcribed Image Text:Time in surgery: Records at a hospital show that a certain surgical procedure takes an average of 172.6 minutes with a standard deviation of 8.5 minutes. If the data are approximately bell-shaped, between what two values will about 68% of the data fall? About 68% of the data will fall between and
The following table presents the percentage of students who tested proficient in reading and the percentage who tested proficient in math for 5 randomly selected states in the United States. Compute the least-squares regression line for predicting math proficiency from reading proficiency. Percent Proficient Percent Proficient in Mathematics State in Reading Illinois 75 70 Pennsylvania 79 77 North Carolina 71 73 New York 75 70 Техas 73 78 Send data to Excel The equation for the least squares regression line is y = Round the slope and y-intercept to four decimal places as needed.
Transcribed Image Text:The following table presents the percentage of students who tested proficient in reading and the percentage who tested proficient in math for 5 randomly selected states in the United States. Compute the least-squares regression line for predicting math proficiency from reading proficiency. Percent Proficient Percent Proficient in Mathematics State in Reading Illinois 75 70 Pennsylvania 79 77 North Carolina 71 73 New York 75 70 Техas 73 78 Send data to Excel The equation for the least squares regression line is y = Round the slope and y-intercept to four decimal places as needed.
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