Answered: (b) Compute a 95% CI for the expected… | bartleby

Algebra & Trigonometry with Analytic Geometry

Algebra & Trigonometry with Analytic Geometry

13th Edition

ISBN:9781133382119

Author:Swokowski

Publisher:Swokowski

Chapter7: Analytic Trigonometry

Section7.6: The Inverse Trigonometric Functions

Problem 91E

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PLEASE HELP WITH PART B) at the bottom, I keep getting incorrect. WILL THUMBS UP IF CORRECT.

The following data is representative of that reported in an article with x = burner-area liberation rate (MBtu/hr-ft2) and y = NOx emission rate (ppm):
x 100 125 125 150 150 200 200 250 250 300 300 350 400 400
y 140 130 170 210 200 320 290 400 420 440 390 610 620 670
(a) Does the simple linear regression model specify a useful relationship between the two rates? Use the appropriate test procedure to obtain information about the P-value, and then reach a conclusion at significance level 0.01.
State the appropriate null and alternative hypotheses.
| Ho: P₂ = 0
H₂: B₂ <0
Ho: P₁0
H₂: B₁ 0
| Ho: P₂ = 0
Hg: B₁ > 0
ⒸHg: B₁0
H₂: ₁0
Calculate the test statistic and determine the P-value. (Round your test statistic to two decimal places and your P-value to three decimal places.)
18.04
t
P-value=0000
State the conclusion in the problem context.
Reject Ho. There is evidence that the model is useful.
O Fail to reject Ho. There is no evidence that the model is useful.
O Fail to reject Ho. There is evidence that the model is useful.
O Reject Ho. There is no evidence that the model is useful.
(b) Compute a 95% CI for the expected change in emission rate associated with a 10 MBtu/hr-ft² increase in liberation rate. (Round your answers to two decimal places.)
17.27
X 17.69
1x) ppm
"

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