(machine is set up such that the average content of juice per bottle equals . A sample of 100 bottles yields an average content of 48cl. Calculate a 90% and a 95% confidence interval for the average content. Assume that the population standard deviation s = 5cl) .... I need to know how to solve this problem in PSPP software or SPSS i know how to solve t as an equation.. and if possible can you please send me a screenshot of the software work so I can understand more.. thank you for your time