For a Sample of 25 Observations Taken from a Normally $\begin{array}{|l|l|}\hline A&\text {t=2.064 }\\\hline B&\text {t=1.711 }\\\hline C&X^{2}=39.3641\\\hline D&\text { z=1.96}\\\hline\end{array}$

Short Answer

For a sample of 25 observations taken from a normally distributed population with standard deviation of 6, a 95% confidence interval estimate for the population mean would require the use of: $\begin{array}{|l|l|}\hline A&\text {t=2.064 }\\\hline B&\text {t=1.711 }\\\hline C&X^{2}=39.3641\\\hline D&\text { z=1.96}\\\hline\end{array}$