We experimentally investigated the dependence of cooling rates of ductile cast iron during the phase of heat treatment. We recorded data on the change of temperature of the cast iron AT and the number w of carbon particles in the cast iron, the measured values are shown in Table 3. Table 3: Cooling of ductile cast iron w [mm-3) 345 238 345 311 338 304 276 338 254 276 344 AT (K] 45 20 65 30 55 30 45 65 30 45 55 Determine whether there is a statistically significant linear relationship between the tempera- ture change and the number of particles at the significance level a = 0.05. If so, find the two- sided confidence intervals for regression coefficients at the confidence level y =1-a.
We experimentally investigated the dependence of cooling rates of ductile cast iron during the phase of heat treatment. We recorded data on the change of temperature of the cast iron AT and the number w of carbon particles in the cast iron, the measured values are shown in Table 3. Table 3: Cooling of ductile cast iron w [mm-3) 345 238 345 311 338 304 276 338 254 276 344 AT (K] 45 20 65 30 55 30 45 65 30 45 55 Determine whether there is a statistically significant linear relationship between the tempera- ture change and the number of particles at the significance level a = 0.05. If so, find the two- sided confidence intervals for regression coefficients at the confidence level y =1-a.
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
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![4. We experimentally investigated the dependence of cooling rates of ductile cast iron during
the phase of heat treatment. We recorded data on the change of temperature of the cast
iron AT and the number w of carbon particles in the cast iron, the measured values are shown
in Table 3.
Table 3: Cooling of ductile cast iron
w [mm-3] 345 238 345 311 338 304 276 338 254 276 344
AT (K]
45
20 65
30 55 30 45 65 30 45 55
Determine whether there is a statistically significant linear relationship between the tempera-
ture change and the number of particles at the significance level a = 0.05. If so, find the two-
sided confidence intervals for regression coefficients at the confidence level y = 1- a.
%3D](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F2a10f147-4600-42e6-99fc-645de09aa442%2F14ee7fb1-6516-424d-8c31-c2c9dc421826%2Frh6jxdq_processed.jpeg&w=3840&q=75)
Transcribed Image Text:4. We experimentally investigated the dependence of cooling rates of ductile cast iron during
the phase of heat treatment. We recorded data on the change of temperature of the cast
iron AT and the number w of carbon particles in the cast iron, the measured values are shown
in Table 3.
Table 3: Cooling of ductile cast iron
w [mm-3] 345 238 345 311 338 304 276 338 254 276 344
AT (K]
45
20 65
30 55 30 45 65 30 45 55
Determine whether there is a statistically significant linear relationship between the tempera-
ture change and the number of particles at the significance level a = 0.05. If so, find the two-
sided confidence intervals for regression coefficients at the confidence level y = 1- a.
%3D
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