Mathematics, 04.12.2019 08:31 nnekas

Which of the following would cause the most worry about the validity of the confidence interval you calculated in the previous exercise?

a)you notice that there is a clear outlier in the data.
b)a stemplot of the data is bell-shaped, so a z-procedure is the appropriate procedure.
c)you do not know the population standard deviation σ.

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Which of the following would cause the most worry about the validity of the confidence interval you...