An exponential random variable X has a true mean value of 5. Suppose we observe n =17 independent realizations of this random variable, x1, x2,...,n. What is the variance of the sample mean?

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A: given data male : n1 = 244x1  = 22female : n2  = 522x2 = 70α = 0.01claim : p1 < p2

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A: given data x¯1  = 46s1 = 3.4n1 = 33x¯2  = 44s2 = 1.4n2 = 3491% ci.α = 1-0.91 = 0.09claim : μ1 ≠ μ2

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Q: you tell me how you got 100204?

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A: given data  μ = 15σ = 1.4Z = 1.2; x = ?

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Q: Claim: μ₁ = ₂; α = 0.01 Population parameters: o₁ = 3.5, 0₂ = 1.6 Sample statistics: X₁ = 15, n₁ =…

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