ch4 chem 210 - F table (9.28). The mean values are not...

Info iconThis preview shows pages 1–5. Sign up to view the full content.

View Full Document Right Arrow Icon
Kimberly Hargraves Chem 210 Chapter 4 Hw pg. 94 2-23-11 11) % gasoline 0.13 0.12 0.16 0.17 0.20 0.11 average 0.15 .90 C interval 0.02 .99 C interval 0.03 STD 0.03 t for .90 C -1.48 t for .99 C -3.36 13) dL=deciliter=0.1L Spooled= Sqrt (0.53) 2 (6-1) + (0.42) 2 (5-1)/6+5-2=.4842061086 T calculated= 14.57-13.95 /.4842061086×Sqrt (6×5)/6+5 T calculated=2.114 2.62 (t table) Yes, the trainee can be on her own.
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
14) There is more than a 5% chance that the two sets of results lie within experimental error of each other, the results are not significantly different. (0.9869) t table(2.571). Sample Metho d 1 Method 2 Differe nce A 0.88 0.83 0.05 B 1.15 1.04 0.11 C 1.22 1.39 -0.17 D 0.93 0.91 0.02 E 1.17 1.08 0.09 F 1.51 1.31 0.2 average 0.05 STD 0.12 C level 0.95 n 6 t calculate d 0.9869 t table 2.571 16) The standard deviations are not significantly different because F calculated (2.43)
Background image of page 2
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 4
Background image of page 5
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: F table (9.28). The mean values are not significantly different because t calculated (1.55) t table (2.447). Quantit y Metho d 1 Metho d 2 mean 1.382 1.346 STD 0.025 0.039 number 4 4 F calculate d 2.43 F table 9.28 t calculate d 1.55 t table 2.447 21) The difference is significant in both cases because t calculated t table. ppm 1 ppm 2 98.6 98.6 98.4 98.4 97.2 97.2 94.6 94.6 96.2 96.2 mean 97 94.5 STD 1.5 mean 96.6 number 5 STD 1.6 C level 0.95 C level 0.95 t calculat ed 146.5 t calculat ed 131.6 t table 2.776 t table 2.776 23) The value 216 should be retained in the results because Q calculated Q table. Results 192 216 202 195 204 mean 201.8 STD 8.4 number 5 C level 0.9 Q calculat ed 0.5 Q table 0.6...
View Full Document

This note was uploaded on 04/18/2011 for the course CHEMISTRY 210 taught by Professor Dr.han during the Spring '11 term at Fayetteville State University.

Page1 / 5

ch4 chem 210 - F table (9.28). The mean values are not...

This preview shows document pages 1 - 5. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online