Table 1.5.3. Data gathered during the criminal case. Concentration, ppm Standard Deviation Element From From clothes window As 129 119 9.5 Co 0.53 0.60 0.025 La 3.92 3.52 0.20 Sb 2.75 2.71 0.25 Th 0.61 0.73 0.043

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A prosecuting attorney in a criminal case

presented as principal evidence small

fragments of glass found imbedded in the coat

of the accused. The attorney claimed that the

fragments were identical in composition to a rare Belgian stained glass window broken

during the crime. The average of triplicate

analyses for five elements in the glass are in

the table. On the basis of these data, does the

defendant have grounds for claiming

reasonable doubt as to guilt? Use the 99%

confidence level as a criterion for doubt.

Table 1.5.3. Data gathered during the criminal
case.
Concentration, ppm
Standard
Deviation
Element
From
From
clothes
window
As
129
119
9.5
Co
0.53
0.60
0.025
La
3.92
3.52
0.20
Sb
2.75
2.71
0.25
Th
0.61
0.73
0.043
Transcribed Image Text:Table 1.5.3. Data gathered during the criminal case. Concentration, ppm Standard Deviation Element From From clothes window As 129 119 9.5 Co 0.53 0.60 0.025 La 3.92 3.52 0.20 Sb 2.75 2.71 0.25 Th 0.61 0.73 0.043
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