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In: Statistics and Probability

Two types of instruments are compared to measure the amount of sulfur carbon monoxide in the...

Two types of instruments are compared to measure the amount of sulfur carbon monoxide in the atmosphere in an experiment on air pollution. The researchers want to determine if the two types of instruments provide measurements with the same variability. The following readings are recorded for the two instruments:

Instrument A 0.86 0.82 0.75 0.61 0.89 0.64 0.81 0.68 0.65
Instrument B 0.87 0.74 0.63 0.55 0.76 0.7 0.69 0.57 0.53

Suppose that the measurement populations are distributed approximately normally and test the hypothesis that ?A = ?B, against the alternative that ?A ≠ ?B. Use a significance level of 0.1

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orchestra answered 2 years ago
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