A randomized experiment was performed to determine whether two fertilizers, A and B, give different yields of tomatoes. A to tal of 33 tomato plants were grown; 16 using fertilizer A, and 17 using fertilizer B. The appropriate conditions for inference were checked and verified, and results of the experiment are shown below

Monitors manufactured by tsi electronics have life spans that have a normal distribution with a standard deviation of 1800 hours and a mean life span of 20,000 hours. if a monitor is selected at random, find the probability that the life span of the monitor will be more than 17,659 hours. round your answer to four decimal places.