Question: Test the claim about the population mean at the level of significance a. Assume the population is normally distributed. Claim: 22500;

Test the claim about the population mean μ at the level of significance a. Assume the population is normally distributed.


Claim: μ ≤ 22500; α = 0.01; σ = 1200

Sample statistics: x̅ = 23,500, n = 45

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