Answered: An article reported data from a study… | bartleby

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

Section10.6: Summarizing Categorical Data

Problem 31PPS

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An article reported data from a study in which both a baseline gasoline mixture and a reformulated gasoline were used. Consider the following observations on age (yr) and NO, emissions (g/kWh):
Engine
1
3
4
7
8
10
Age
2
11
7
16
9.
12
4
Baseline
1.69
4.35
4.09
1.26
5.29
0.54
3.37
3.47
0.75
1.21
Reformulated
1.85
5.95
5.52
2.66
6.54
0.74
4.92
4.92
0.70
1.43
n USE SALT
Construct scatter plots of the baseline NO, emissions versus age.
NOX
NOX
6
3
3
2
1
1
age
age
10
15
5
10
15
NOX
NOX
6.
5
4
4
3
3
2
2
1
1
age
age
10
15
10
15
Construct scatter plots of the reformulated NO, emissions versus age.
NOx
NOX
6
6
4
4
3
3
2
1
1
age
age
10
15
5
10
15
NOX
NOX
6
6.
4
4
3
3
2
2
1
1
age
age
10
15
5
10
15
What appears to be the nature of the relationship between these two variables?
O There is no compelling relationship between the data.
O As age increases, emissions decrease.
O As age increases, emissions also increase.

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