Be sure to determine correctly whether the confidence intervals are calculated with the normal distribution or the t distribution In a study relating physical attractiveness and mental disorders, 231 subjects were rated for attractiveness The resulting sample mean and standard deviation for that va...

Be sure to determine correctly whether the confidence intervals are calculated with the normal distribution or the

Question:

Be sure to determine correctly whether the confidence intervals are calculated with the normal or the t a study relating physical attractiveness and mental disorders, 231 subjects were rated for attractiveness. The resulting sample mean and standard deviation for that variable were 3.94 and 0.75, respectively. Use these sample data to construct the 95% confidence interval for the population mean. 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...