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In: Statistics and Probability

The level of sulphur in batches of an aircraft fuel is claimed by the manufacturer to...

  1. The level of sulphur in batches of an aircraft fuel is claimed by the manufacturer to be symmetrically distributed with a median value of 0.10%. Successive batches are found to have sulphur concentrations of 0.09, 0.12, 0.10, 0.11, 0.08, 0.17, 0.12, 0.14 and 0.11%. Use the sign test and the Wilcoxon signed rank test to check the manufacturer’s claim.

Clear calculations please

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orchestra answered 1 year ago
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