i) If Ho is rejected when Σ2₁X₁ ≤ 6. then what is the probability of type I error?

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Q: Please only answer 5.74

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Q: th respect to the z test (statistic) and the t test (statistic), each of the following are true,…

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A: Given sample data is 12,14,17,18,21sample size(n)=5