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In the EAI sampling problem, the population mean is $51,200 and the population standard deviation is $4,000. When the sa
Posted: Wed May 11, 2022 4:59 pm
by answerhappygod
- In The Eai Sampling Problem The Population Mean Is 51 200 And The Population Standard Deviation Is 4 000 When The Sa 1 (13.99 KiB) Viewed 29 times
In the EAI sampling problem, the population mean is $51,200 and the population standard deviation is $4,000. When the sample size is n = 30, there is a 0.5064 probability of obtaining 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 4 decimals)? 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 4 decimals)?