In the EAI sampling problem, the population mean is $51,800 and the population standard deviation is $4,000. When the sa
Posted: Wed Jul 13, 2022 5:06 am
In the EAI sampling problem, the population mean is $51,800 andthe population standard deviation is $4,000. When the sample sizeis n = 30, there is a .5034 probability ofobtaining a sample mean within +/- $500 of the population mean.Use z-table.
A. What is the probability that the sample mean is within$500 of the population mean if a sample of size 60 is used (to 4decimals)?
B. What is the probability that the sample mean is within$500 of the population mean if a sample of size 120 is used (to 4decimals)?
A. What is the probability that the sample mean is within$500 of the population mean if a sample of size 60 is used (to 4decimals)?
B. What is the probability that the sample mean is within$500 of the population mean if a sample of size 120 is used (to 4decimals)?