Under what circumstance does the t-distribution look nearly identical to the z-distribution? a) When the standard deviation of the sample is very small. b) The distributions are always identical. c) When the sample size (N) is very large. d) When the mean of the distribution is zero.
Added by Elijah M.
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a) The t-distribution is not affected by the standard deviation of the sample, so this is not the correct answer. Show more…
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