Unformatted text preview: PROBLEM 4.43 KNOWN: CI = 0.1 g
5x = 28 FIND: N
SOLUTION Let d= CI/2= 0.05 g. We seek the number of measurements required
to keep th__ < 0. 05g at 95%. N = (tsx/d)2
If we select a large number of measurements such that 9.193 = 1.96, then N as 6150 For this value, the t value remains unchanged. Thus, a large number of
measurements are required due to the restriction on C1. 4-42 ...
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- Fall '08