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HW 7: Determine whether a data point is an outlier Mandatory:1,2 Find the absolute (e) and percent relative uncertainty (%e) and express each answer with a reasonable number of significant figures. 1. 16(C000))7.06820.0004) -7 1241(t0.09 x 4.16(+0.01) b. 3.26(+0.10) x 8.47(0.05)) 0.18(0.06) 6.843(t0.008) x10+ (2.09(+0.03)-163(+0.01)) C. 2. Lets us the Grubbs Test to determine whether a measurement is sufficiently erroneous to disregard. 24.1 32.4 31.2 24.7 25.0 35.0 51.2 23.1 26.9 29.5 42.1 For your convenience, the measured mean is 31.38, and standard deviation is 8.67. #sample-11. questionable value-x a. Calculate the G-score. Gcalculated b. Compare the Gcaculated to Gcritica see attached table). Can you disregard the 51.2 number? Explain.
Grubbs Critical Value Table (An extended version of Table 4-6, page 81) Mostly we will use the 5% value. N # samples. 5%), data is included. (There is a greater than 5% chance that the data is not erroneous) 12 14 15 232 241 17 20 21 26 76 26 61 35 36 37 38 39 004 42 03 52
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