Based on a random sample of size 100 drawn from an arbitrary population, the analyst calculated the approximate symmetric 95
1) The population mean is between 10 and 20 with 95% confidence.
2) The sample mean is between 10 and 20 with 95% confidence.
3) The population mean is exactly 15 with 95% confidence.
4) The sample mean is exactly 15 with 95% confidence.