A simple random sample of 50 items from a population with σ  6 resulted in a sample

Question

A simple random sample of 50 items from a population with σ  6 resulted in a sample
mean of 32.
a. Provide a 90% confidence interval for the population mean

PsyDAG · Accepted Answer

90% = mean ± 1.645 SEm SEm = SD/√n

Anonymous · Answer

1.396

A simple random sample of 50 items from a population with σ � 6 resulted in a sample