please help

A technology company is studying the launch of their new laptop computers in order to track warranty purchases. Assume that the laptop warranties have an unknown distribution with a mean of 243 days and a standard deviation of 34 days. A sample of 40 laptop warranty purchases are randomly selected from the population. Use Excel to calculate the probability that the average laptop warranty purchase for the sample will be greater than 253. Round your answers to three decimal places. Provide your answer below: U - days 0 - = days