An analyst wants to compare the analytical performances of a new method in the determination of Se in vegetables with a reference method. The analyst selects a suitable sample and analyses 8 portions of the sample using the reference method and 8 portions using the proposed method. The results are shown Method Reference Mean (mg/100g) Standard deviation (mg/100g) 0.1988 0.0275 Proposed 0.1513 0.0210 Check whether the measurement results are compatible at 0.05 significance level. Given that F. = 4.99 and tc = 2.145.

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3. An analyst wants to compare the analytical performances of a new method
in the determination of Se in vegetables with a reference method. The
analyst selects a suitable sample and analyses 8 portions of the sample
using the reference method and 8 portions using the proposed method. The
results are shown
Method
Mean (mg/100g)
Standard deviation (mg/100g)
Reference
0.1988
0.0275
Proposed
0.1513
0.0210
Check whether the measurement results are compatible at 0.05
significance level. Given that F.
= 4.99 and t. = 2.145.
(F = 1.71, t = 3.88)
Transcribed Image Text:3. An analyst wants to compare the analytical performances of a new method in the determination of Se in vegetables with a reference method. The analyst selects a suitable sample and analyses 8 portions of the sample using the reference method and 8 portions using the proposed method. The results are shown Method Mean (mg/100g) Standard deviation (mg/100g) Reference 0.1988 0.0275 Proposed 0.1513 0.0210 Check whether the measurement results are compatible at 0.05 significance level. Given that F. = 4.99 and t. = 2.145. (F = 1.71, t = 3.88)
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