A researcher is interested in estimating the mean weight of a semi tractor truck to determine the potential load capacity. She takes a random sample of 17 trucks and computes a sample mean of 20,000 pounds with a sample standard deviation of 1,500. The 95% confidence interval for the population mean weight of a semi-tractor truck is ______________.

19,232 to 20,768

19,367 to 20,633

19,365 to 20,635

19,229 to 20,771

18,500 to 21,500