12.134 Suppose you fit the modely = A + Biı + Bati + B2 + Butits + eto n = 25 data points with the following results:A - 1.26 A - -2.43 A = .05 B = 62 = 1.81sa,= 1.21 sa,= .16 $p,™ 26 sp,= 1.49SSE = A1 R = 83a. Is there sufficient evidence to conclude that at leastone of the parameters B.. B. By, or Ba is nonzero? Testusing a = .05.b. Test Ho B = 0 against H: B, < 0. Use a 05.e. Test Hi B2 = 0 agaiust H: B > 0. Use a A15.d. Test Ho: B = 0 against H: B * 0. Use a = 05.

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12.134 Suppose you fit the model y = A + Bi + Brf + Bz + Betz + e to n = 25 data points with the following results: A - 1.26 A = -2.43 = .us B = 62 = 1.81 s,= 1.21 sa, 16 sa,= 26 sa- 1.49 SSE = 41 R a 83 a. Is there suffcient evidence to conclude that at least one of the parameters B. B. B3. or Ba is nonzero? Test using a = 05. b. Test H B e. Test Hi B = 0 agaiust H: B, > 0. Use a = A5. d. Test Ho: B = 0 against H B, * 0. Use a = 6. = 0 0 against H: B< 0. Use a 05.

12.134 Suppose you fit the model y = A + Bi + Brf + Bz + Betz + e to n = 25 data points with the following results: A - 1.26 A = -2.43 = .us B = 62 = 1.81 s,= 1.21 sa, 16 sa,= 26 sa- 1.49 SSE = 41 R a 83 a. Is there suffcient evidence to conclude that at least one of the parameters B. B. B3. or Ba is nonzero? Test using a = 05. b. Test H B e. Test Hi B = 0 agaiust H: B, > 0. Use a = A5. d. Test Ho: B = 0 against H B, * 0. Use a = 6. = 0 0 against H: B< 0. Use a 05.

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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8.6 A large laboratory has four types of devices used to determine the pH of soil samples. Thelaboratory wants to determine whether there are differences in the average readings given bythese devices. The lab uses 24 soil samples having known pH in the study and randomly assignssix of the samples to each device. The soil samples are tested, and the response recorded for eachsample is the difference between the pH reading of the device and the known pH of the soil.These values, along with summary statistics, are given in the following table.SampleDevice 1 2 3 4 5 6A 2.307 2.294 .079 .019 2.136 2.324B 2.176 .125 2.013 .082 .091 .459C .137 2.063 .240 2.050 .318 .154D 2.042 .690 .201 .166 .219 .407Copyright 2016 Cengage Learning. All Rights Reserved. May not be copied, scanned, or duplicated, in whole or in part. Due to electronic rights, some third party content may be suppressed from the eBook and/or eChapter(s).Editorial review has deemed that any suppressed content does not materially…
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8.6 A large laboratory has four types of devices used to determine the pH of soil samples. The laboratory wants to determine whether there are differences in the average readings given by these devices. The lab uses 24 soil samples having known pH in the study and randomly assigns six of the samples to each device. The soil samples are tested, and the response recorded for each sample is the difference between the pH reading of the device and the known pH of the soil. These values, along with summary statistics, are given in the following table. Sample Device 1 2 3 4 5 6 A -.307 -.294 .079 .019 -.136 -.324 B -.176 .125 -.013 .082 .091 .459 C .137 -.063 .240 -.050 .318 .154 D -.042 .690 .201 .166 .219 .407 a. Based on your intuition, is there evidence to indicate any difference among the mean differences in pH readings for the four devices? b. Run an analysis of variance to confirm or reject your conclusion in…
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