Cobalt is often added to steel in order to increase its hardness. The cobalt content of 5 different steel samples was measured by titration and by spectroscopy (Table 2). Table 2: Cobalt content (in...

Using the 95% confidence interval, determine whether there is a significant
difference in precision obtained by the two different methods(Titration and Spectroscopy). Explain fully showing all working.

Cobalt is often added to steel in order to increase its hardness. The cobalt content of<br>5 different steel samples was measured by titration and by spectroscopy (Table 2).<br>Table 2: Cobalt content (in mg L) in 5 different steel samples.<br>Sample<br>Titration<br>Spectroscopy<br>1<br>134<br>135<br>144<br>156<br>3<br>126<br>137<br>4<br>125<br>137<br>137<br>136<br>

Extracted text: Cobalt is often added to steel in order to increase its hardness. The cobalt content of 5 different steel samples was measured by titration and by spectroscopy (Table 2). Table 2: Cobalt content (in mg L) in 5 different steel samples. Sample Titration Spectroscopy 1 134 135 144 156 3 126 137 4 125 137 137 136

Jun 11, 2022

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Cobalt is often added to steel in order to increase its hardness. The cobalt content of 5 different steel samples was measured by titration and by spectroscopy (Table 2). Table 2: Cobalt content (in...

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