Statistics A chemist performed a analysis of 5 replicate sam

Statistics: A chemist performed a analysis of 5 replicate samples of NIST traceable certified materials, with these results: iron = 7.82 % + 0.09 % (wt/wt). The NIST certified value was 8.01 % (wt/wt) . Use the appropriate statistical test of significance at 95 % confidence, to show whether or not the analyst found the \"true\" value. Clearly indicate the criterion value you use.

Solution

alpha = 0.05

critical value : 2.5

reject Ho because T > critical value

so our conclusion is

the analyst found the \"true\" value