The heights of dogs, in inches, in a city are normally distributed with a population standard deviation of 3 inches and an unknown population mean. If a random sample of 17 dogs is taken and results...

The heights of dogs, in inches, in a city are normally distributed with a population standard deviation of 3 inches and an unknown population mean. If a random sample of 17 dogs is taken and results in a sample mean of 28 inches, find the error bound (EBM) of the confidence interval with a 90% confidence level.