Fish weights data

An environmental scientist wants to determine whether temperature changes in the ocean near a nuclear power plant affect the growth of fish. The scientist randomly divides 25 fish into four groups and places each group into a separate, simulated ocean environment. The simulated environments are identical except for temperature. Six months later, the scientist measures the weights of the fish.

You can use this data to demonstrate Mood’s Median Test and other analyses that compare population medians.

Worksheet column Description
Weight The weight of each fish (response)
Temp The temperature of the environment for each fish: 38, 42, 46, or 50 (factor)
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