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A department of transportation hoped that they could measure the weights of big trucks without actually stopping the vehicles by using a newly developed "weight-in-motion" scale. To see if the new device was accurate, they conducted a calibration test. They weighed several stopped trucks (static weight) and assumed that this weight was correct Then they weighed the trucks again while they were moving to see how well the new scale could estimate the actual weight Their data are given in the table available below. Complete parts a through f below E Click the icon to view the truck weight data a) Make a scatterplot for these data Which scatterplot below shows the data? OA. OB. OC. OD. Weights (1000s of bs) Weights (1000s of bs) Q Weights (1000s of Ibs) Weights (1000s of Ibs) E 50+ 50- 50 504 40- 50 40 1 30- 40- 404 E- 30 O 30 30 20 20 30 40 so Weightin-Motion 4 201-111 20 30 40 s0 Weightin Motion 20 30 40 50 Weghtin-Metion 20- 20 30 40 s0 Weghtin-Moten b) Describe the direction, form, and strength of the plot. The association is Vand c) What does the plot say about the data? O A. The new scale is able to predict the static weight accurately enough to be useful except possibly at the high end O B. The new scale is not able to predict the static weight accurately enough to be useful OC. The new scale is able to predict the static weight accurately enough to be useful except possibly at the low end O D. Since there are outliers, it is not recommended to use the new scale to predict static weight di Find the correlation between weiaht-in-motion and static weiaght

A department of transportation hoped that they could measure the weights of big trucks without actually stopping the vehicles by using a newly developed "weight-in-motion" scale. To see if the new device was accurate, they conducted a calibration test. They weighed several stopped trucks (static weight) and assumed that this weight was correct Then they weighed the trucks again while they were moving to see how well the new scale could estimate the actual weight Their data are given in the table available below. Complete parts a through f below E Click the icon to view the truck weight data a) Make a scatterplot for these data Which scatterplot below shows the data? OA. OB. OC. OD. Weights (1000s of bs) Weights (1000s of bs) Q Weights (1000s of Ibs) Weights (1000s of Ibs) E 50+ 50- 50 504 40- 50 40 1 30- 40- 404 E- 30 O 30 30 20 20 30 40 so Weightin-Motion 4 201-111 20 30 40 s0 Weightin Motion 20 30 40 50 Weghtin-Metion 20- 20 30 40 s0 Weghtin-Moten b) Describe the direction, form, and strength of the plot. The association is Vand c) What does the plot say about the data? O A. The new scale is able to predict the static weight accurately enough to be useful except possibly at the high end O B. The new scale is not able to predict the static weight accurately enough to be useful OC. The new scale is able to predict the static weight accurately enough to be useful except possibly at the low end O D. Since there are outliers, it is not recommended to use the new scale to predict static weight di Find the correlation between weiaht-in-motion and static weiaght

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter1: Expressions And Functions
Section1.5: Descriptive Modeling And Accuracy
Problem 4CYU
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Truck weight data Weights (1000s of Ibs) Weight-in-Motion 28.7 34.9 Static Weight O 29.3 33.4 25.6 27.3 26.5 36.3 27.6 34.7 30.6 30.3 39.9 36.7 30.3 32.7 26.9 28.2 40.3 33.8 Print Done u be uselur. useful except possibly at the low end. edict static weight.
Transcribed Image Text:Truck weight data Weights (1000s of Ibs) Weight-in-Motion 28.7 34.9 Static Weight O 29.3 33.4 25.6 27.3 26.5 36.3 27.6 34.7 30.6 30.3 39.9 36.7 30.3 32.7 26.9 28.2 40.3 33.8 Print Done u be uselur. useful except possibly at the low end. edict static weight.
A department of transportation hoped that they could measure the weights of big trucks without actually stopping the vehicles by using a newly developed "weight-in-motion" scale. To see if the new device was accurate, they conducted a calibration test. They weighed several stopped trucks (static weight) and assumed that this weight was correct. Then they weighed the trucks again while they were moving to see how well the new scale could estimate the actual weight. Their data are given in the table available below. Complete parts a through f below. E Click the icon to view the truck weight data. a) Make a scatterplot for these data Which scatterplot below shows the data? O A. O B. OC. O D. Weights (1000s of Ibs) Weights (1000s of Ibs) Weights (1000s of Ibs) Q Weights (1000s of Ibs) - 50- 50 50 40 . 50 * 40- 8 30- 40- 40 EEE 30- 20 2 30+ - 30 - 20 30 Weight-in-Motion 20 > 20 30 40 50 Weight-in Motion 40 s 50 20- 20 30 40 50 Weight-in-Motion ở 20- 20 30 40 50 Weight-in-Motion b) Describe the direction, form, and strength of the plot The association is V and c) What does the plot say about the data? O A. The new scale is able to predict the static weight accurately enough to be useful except possibly at the high end. O B. The new scale is not able to predict the static weight accurately enough to be useful. O C. The new scale is able to predict the static weight accurately enough to be useful except possibly at the low end. O D. Since there are outliers, it is not recommended to use the new scale to predict static weight d) Find the correlation between weight-in-motion and static weight.
Transcribed Image Text:A department of transportation hoped that they could measure the weights of big trucks without actually stopping the vehicles by using a newly developed "weight-in-motion" scale. To see if the new device was accurate, they conducted a calibration test. They weighed several stopped trucks (static weight) and assumed that this weight was correct. Then they weighed the trucks again while they were moving to see how well the new scale could estimate the actual weight. Their data are given in the table available below. Complete parts a through f below. E Click the icon to view the truck weight data. a) Make a scatterplot for these data Which scatterplot below shows the data? O A. O B. OC. O D. Weights (1000s of Ibs) Weights (1000s of Ibs) Weights (1000s of Ibs) Q Weights (1000s of Ibs) - 50- 50 50 40 . 50 * 40- 8 30- 40- 40 EEE 30- 20 2 30+ - 30 - 20 30 Weight-in-Motion 20 > 20 30 40 50 Weight-in Motion 40 s 50 20- 20 30 40 50 Weight-in-Motion ở 20- 20 30 40 50 Weight-in-Motion b) Describe the direction, form, and strength of the plot The association is V and c) What does the plot say about the data? O A. The new scale is able to predict the static weight accurately enough to be useful except possibly at the high end. O B. The new scale is not able to predict the static weight accurately enough to be useful. O C. The new scale is able to predict the static weight accurately enough to be useful except possibly at the low end. O D. Since there are outliers, it is not recommended to use the new scale to predict static weight d) Find the correlation between weight-in-motion and static weight.
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