Research reported the results of a study on the occurrence of oxygen and chloride in surface streams in central Washington state area. The following data are chloride concentration y (in milligrams per liter) and roadway area in the watershed x (in percentage) y 19.20 23.10 27.40 27.70 31.80 39.50 X 0.69 1.30 1.05 1.06 1.74 1.62 y 4.40 6.60 9.70 10.60 10.80 10.90 X 0.19 0.15 0.57 0.70 0.67 0.63 y 11.80 12.10 14.30 14.70 15.00 17.30 X 0.47 0.70 0.60 0.78 0.81 0.78 ✓ Fit the simple linear regression model using the method of least squares ✓ Find an estimate of 2 ✓ Estimate the mean chloride concentration for a watershed that has 1% roadway area ✓ Find the fitted value corresponding to x = 0.47 Find the associated residual ✓ Test the hypothesis, with a = 0.01 H₁: B₁ = 0 H₁: B₁0 Estimate the standard errors in ¹B₁ ✓ Find a 99% prediction interval on chloride concentration when roadway area x = 1.0% A. 2.14169 B. 1.93591 C. 1.6629 D.y = 0.470 + 20.567x E. 0.0997 + 0.0414x F. 21.038 G. (18.2066, 23.8694) H. 10.14 I. 13.81 J. (9.8201, 32.2559) K. Fail to reject Ho L. Reject Ho
Research reported the results of a study on the occurrence of oxygen and chloride in surface streams in central Washington state area. The following data are chloride concentration y (in milligrams per liter) and roadway area in the watershed x (in percentage) y 19.20 23.10 27.40 27.70 31.80 39.50 X 0.69 1.30 1.05 1.06 1.74 1.62 y 4.40 6.60 9.70 10.60 10.80 10.90 X 0.19 0.15 0.57 0.70 0.67 0.63 y 11.80 12.10 14.30 14.70 15.00 17.30 X 0.47 0.70 0.60 0.78 0.81 0.78 ✓ Fit the simple linear regression model using the method of least squares ✓ Find an estimate of 2 ✓ Estimate the mean chloride concentration for a watershed that has 1% roadway area ✓ Find the fitted value corresponding to x = 0.47 Find the associated residual ✓ Test the hypothesis, with a = 0.01 H₁: B₁ = 0 H₁: B₁0 Estimate the standard errors in ¹B₁ ✓ Find a 99% prediction interval on chloride concentration when roadway area x = 1.0% A. 2.14169 B. 1.93591 C. 1.6629 D.y = 0.470 + 20.567x E. 0.0997 + 0.0414x F. 21.038 G. (18.2066, 23.8694) H. 10.14 I. 13.81 J. (9.8201, 32.2559) K. Fail to reject Ho L. Reject Ho
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 2AGP
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Transcribed Image Text:Research reported the results of a study on the occurrence of oxygen and chloride in surface streams in
central Washington state area. The following data are chloride concentration y (in milligrams per liter)
and roadway area in the watershed x (in percentage)
V
19.20
23.10
27.40
27.70
31.80
39.50
0.69
1.30
1.05
1.06
1.74
1.62
y
4.40
6.60
9.70
10.60
10.80
10.90
X
0.19
0.15
0.57
0.70
0.67
0.63
y
11.80
12.10
14.30
14.70
15.00
17.30
x
0.47
0.70
0.60
0.78
0.81
0.78
✓ Fit the simple linear regression model using the method of least squares
✓ Find an estimate of 2
✓ Estimate the mean chloride concentration for a watershed that has 1% roadway area
✓ Find the fitted value corresponding to x = 0.47
✓ Find the associated residual
✓ Test the hypothesis, with a = 0.01
H₁: B₁ = 0
H₁: B₁# 0
✓ Estimate the standard errors in
in B₁
✓ Find a 99% prediction interval on chloride concentration when roadway area x = 1.0%
A. 2.14169
B. 1.93591
C. 1.6629
D.ỹ = 0.470 + 20.567x
E.
0.0997 + 0.0414x
F. 21.038
G. (18.2066, 23.8694)
H. 10.14
I. 13.81
J. (9.8201, 32.2559)
K. Fail to reject Ho
L. Reject Ho
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