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You are thinking of using a t procedure to construct a 95% confidence interval for the mean of a population. You suspect the distribution of

You are thinking of using atprocedure to construct a 95% confidence interval for the mean of a population. You suspect the distribution of the population is skewed with outliers. Which of the following statements is correct?

a.You should not use thetprocedure because the population does not have a Normal distribution.

b.You may use thetprocedure, provided your sample size is large, say at least 40.

c.You may use thetprocedure because it is robust to nonNormality.

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