Can you please help me and explain step by step? If possible to get answer on TI 83 please explain steps? Thank you.

Let X represent the full height of a certain species of tree. Assume that X has a normal probability distribution with mean 114.9 ft and standard deviation 23.3 ft. You intend to measure a random sample of n = 128 trees. The bell curve below represents the distibution of these sample means. The scale on the horizontal axis is the standard error of the sampling distribution. Complete the indicated boxes, correct to two decimal places. HI = 114.9 114.9