Critical Thinking Lorraine computed a confidence interval
Chapter , Problem 9(choose chapter or problem)
Critical Thinking Lorraine computed a confidence interval for m based on a sample of size 41. Since she did not know s, she used s in her calculations. Lorraine used the normal distribution for the confidence interval instead of a Students t distribution. Will her interval be longer or shorter than one obtained by using an appropriate Students t distribution? Explain.
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