(Solution) - An agricultural cooperative guarantees that the mean shelf life of -(2025 Original AI-Free Solution)

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An agricultural cooperative guarantees that the mean shelf life of a certain type of dried fruit is at least 400 days.
(a) State the null and alternative hypotheses, and identify which represents the claim,
(b) Describe type I and type II errors for a hypothesis test of the claim,
(c) Explain whether the hypothesis test is left-tailed, right-tailed, or two-tailed,
(d) Explain how you should interpret a decision that rejects the null hypothesis,
(e) Explain how you should interpret a decision that fails to reject the null hypothesis.