A random sample has been taken from a normal distribution. Output from a software package is given below:
variable: x
N: 10
mean: ?
xbar: 25.185
sigma: 1.605
variance: ?
sum: 251.848
Mean: ___________ ( I got 25.18, please let me know if correct?)
Variance: ___________
Extra: Find the 95% confidence interval on the population mean for the preceding problem.