MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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An engineer is testing a new car model to determine how its fuel efficiency, measured in L/(100
km), is related to its speed, which is measured in km/hour.
The engineer calculates the average speed for 30 trials. The average speed is an example of a
(statistic or parameter)
The engineer would like to find the least squares regression line predicting fuel used (y) from speed
(x) for the 30 cars he observed. He collected the data below.
Speed 62 65 80 82 85 87 90 96 98 100
Fuel 12 13 14 13 14 14 15 15 16 15
Speed 100 102 104 107 112 114 114 117 121 122
Fuel 16 17 16 17 18 17 18 17 18 19
Speed 124 127 127 130 132 137 138 142 144 150
Fuel 18 19 20 19 21 23 22 23 24 26
The regression line equation is
Round each number to four decimal places.
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Transcribed Image Text:An engineer is testing a new car model to determine how its fuel efficiency, measured in L/(100 km), is related to its speed, which is measured in km/hour. The engineer calculates the average speed for 30 trials. The average speed is an example of a (statistic or parameter) The engineer would like to find the least squares regression line predicting fuel used (y) from speed (x) for the 30 cars he observed. He collected the data below. Speed 62 65 80 82 85 87 90 96 98 100 Fuel 12 13 14 13 14 14 15 15 16 15 Speed 100 102 104 107 112 114 114 117 121 122 Fuel 16 17 16 17 18 17 18 17 18 19 Speed 124 127 127 130 132 137 138 142 144 150 Fuel 18 19 20 19 21 23 22 23 24 26 The regression line equation is Round each number to four decimal places.
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