(Answered) Biology and environmental sciencethe 154-day weights in

Statistics

Biology and Environmental Science

The 154-day weights (in pounds) of 16 randomly selected Rambouillet lambs on a farm in Nebraska were recorded. The data are given in the following table.

Assume the underlying distribution of weights is continuous and symmetric. Use the Wilcoxon signed-rank test to determine whether there is any evidence that the median 154-day weight is less than 118 pounds. Use a significance level of 0.05.

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