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The percentage of iron oxide was analyzed by two different methods. The results were 43.3 ± 0.33% and 43.6 ± 0.24% with five measurements each. Are the standard deviations significantly different from each other at 95% confidence level? fat 95% confidence level a) Yes B) No C) Possibly D) Cannot be determined
Accepted Answer
To determine if the standard deviations are significantly different, a statistical test like the F-test for comparing variances should be performed. This involves calculating the F-statistic and comparing it to the critical value from the F-distribution at the 95% confidence level. Without the raw data for each measurement, we can't calculate the F-statistic. Therefore, the answer is D) Cannot be determined.
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