Question: 52 clouds were randomly assigned to be seeded or not in an experiment to determine whether seeding clouds with silver iodide increases rainfall. The amount

52 clouds were randomly assigned to be seeded or not in an experiment to determine whether seeding clouds with silver iodide increases rainfall. The amount of rain generated is in acre-feet.

n Mean Median SD IQR Q1 Q3

Unseeded 26 164.59 44.20 278.43 138.60 24.40 163

Seeded 26 441.98 221.60 650.79 337.6 92.40 430

Is there any evidence that seeding clouds may be effective? How do I explain this?

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