brief explanation or answer is fine. thanks.

ill The mean height of women in a country (ages 20 29] is 64.3 inches. A random sample of 55 women in this age group is selected. What is the probability that the mean height for the sample is greater than 65 inches? Assume a = 2.56. The probability that the mean height for the sample is greater than 65 inches is D. [Round to four decimal places as needed.)