ed the EAI sampling problem the population mean is 71 300

Last updated: 12/5/2023

ed the EAI sampling problem the population mean is 71 300 and the population standard deviation is 5000 For n 30 there is a 0 4176 probability of obtaining a sample mean within 500 of the population mean Use z table a What is the probability that is within 500 of the population mean if a sample of size 60 is used to 4 decimals b Answer part a for a sample of size 120 to 4 decimals