How do the t_dfand z distributions differ? A) There is no difference between the t_dfand z distributions; they both do not have asymptomatic tails. B) The z distribution has broader tails (it is flatter around zero). C) The t_dfdistribution has broader tails (it is flatter around zero). D) The z distribution has asymptotic tails, while the t_dfdistribution does not.

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Quizplus · Accepted Answer

The t-distribution has broader tails compared to the z-distribution, which means it is flatter around zero. This accounts for the increased variability (uncertainty) when estimating the population standard deviation from a sample.

How Do the Tdf and Z Distributions Differ

How Do the T_dfand Z Distributions Differ