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There are concerns about national blood shortages, especially as many of the regular blood donors are older and are "aging out" of their eligibility to donate blood

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There are concerns about national blood shortages, especially as many

of the regular blood donors are older and are "aging out" of their eligibility to donate blood. A researcher wants to know if the average age of blood donors is different in each state.
Complete ONE step in the hypothesis test, as indicated below.
1. What type of hypothesis test would you use to answer this question?  Explain your reasoning.
2. What are the random variables and parameter, stated in words? State the null and alternative hypotheses.
3. State and check (when possible) the assumptions for this type of test.