Chapter 2: Error Analysis

Answers to Exercises

(2) 6.69, 0.16, 0.06
(3) 86.1, 2.0, 0.7
(4) 5.61 ± 0.07 tons, ± 0.20 tons
(6) 1211, 25, 11 or 12
(8) 0.16 degrees, 0.17 degrees, 0.16 degrees
(9) 10.79 degrees ± 0.11 degrees vs. 11.08 degrees ± 0.05 degrees
(10) 0.027 sec vs. 0.042 sec.
(11)
(a) 5.59 ± 0.13 cm
(b) 10.0 ± 0.4 cm²(c) 3.0 ± .2 cm³(12) 388.49 ± 0.16 f/s; the time
(13) 0.284 ± 0.004 cm³(14) the second guy is wrong; why?
(15) 0.67, no, 0
(16) 0.4491 to 0.4521 cm, 0.4480 to 0.4532 cm
(17) 7.12
(18) 74.86 cm; about 0.17 standard errors (19) the slope is 1.74 ± 0.08