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H0: μ = 12.4, Ha: μ ≠ 12.4; x = 10.2, σ = 3.7, n =...

H0: μ = 12.4, Ha: μ ≠ 12.4; x = 10.2, σ = 3.7, n = 20
(i) Calculate the test statistic z. (Round your answer to two decimal places.)

(ii) Calculate the p-value. (Round your answer to four decimal places.)

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