Mathematics, 21.12.2019 04:31 krog79

Consider two populations for which μ1 = 31, σ1 = 3, μ2 = 29, and σ2 = 2. suppose that two independent random samples of sizes n1 = 4 and n2 = 53 are selected. describe the approximate sampling distribution of x1 − x2 (center, spread, and shape).a. what is the mean of the distribution? b. what is the standard deviation of the distribution?

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Consider two populations for which μ1 = 31, σ1 = 3, μ2 = 29, and σ2 = 2. suppose that two independen...