Lorraine computed a confidence interval for based on a sample of size 41. Since she did

Question:

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.

Distribution
The word "distribution" has several meanings in the financial world, most of them pertaining to the payment of assets from a fund, account, or individual security to an investor or beneficiary. Retirement account distributions are among the most...