On a standardized science test, the seniors at Fillmore High School have a mean score of 430 with a standard deviation of 90.

For random samples of 100 seniors, what interval centered on the mean of the sampling distribution captures 68% of the mean scores? If necessary, round to the nearest tenth. Enter the interval from least to greatest.

For random samples of 100 seniors, 68% of the sample means fall between and ___