The average daily rainfall in a jungle in South America was

The average daily rainfall in a jungle in South America was four inches back in 2000. Suppose a scientist thinks the average rainfall is different now. Set up the null and alternative hypotheses for this example.

H0:mu₂₀₀₀=mu₂₀₁₆ (Average rainfall has not changed since 2000)

H1:mu₂₀₀₀ not equal to mu₂₀₁₆ (Average rainfall is different now)