Question: Lorraine computed a confidence interval for based on a sample of size 41. Since she did not know s, she used s in her

Lorraine computed a confidence interval for μ 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 Student's t distribution. Was her interval longer or shorter than one obtained by using an appropriate Student's t distribution? Explain.

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