Chemistry, 20.04.2021 09:40 sarahalexa19
A new method of determining cobalt in soil sample gave 99.35% recovery (variance
0.185). the standard method gave 99.53% recovery (variance 0.152). In each case three
replicate measurements were made. Test whether the two means differ significantly at the
95% confidence level.
Answers: 3
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A new method of determining cobalt in soil sample gave 99.35% recovery (variance
0.185). the stand...
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