An enzymatic method for determining alcohol in the wine is evaluated by comparison with a gas-chromatography (GC) method. The same sample is analyzed several times by both methods with the following results (% ethanol). The values of alcohol for both enzymatic and GC methods are shown in Table 1. Using a suitable test, determine whether the enzymatic method gives the same value as the GC method at 95% confidence level.

Fundamentals Of Analytical Chemistry
9th Edition
ISBN:9781285640686
Author:Skoog
Publisher:Skoog
Chapter30: Kinetic Methods Of Analysis
Section: Chapter Questions
Problem 30.12QAP
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An enzymatic method for determining alcohol in the wine is evaluated by comparison with a gas-chromatography (GC) method. The same sample is analyzed several times by both methods with the following results (% ethanol). The values of alcohol for both enzymatic and GC methods are shown in Table 1. Using a suitable test, determine whether the enzymatic method gives the same value as the GC method at 95% confidence level.

Table 1: The values of alcohol obtained from enzymatic and GC methods
GC method (%)
Enzymatic
method (%)
13.1
13.5
12.7
13.3
12.6
13.0
13.3
12.9
13.3
Transcribed Image Text:Table 1: The values of alcohol obtained from enzymatic and GC methods GC method (%) Enzymatic method (%) 13.1 13.5 12.7 13.3 12.6 13.0 13.3 12.9 13.3
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