We're getting close, and on our table, this is the lowest z-score that gets us across that 70% threshold. It's at 0.7019. So it definitely crosses the threshold, and so that is a z-score of 0.53. 0.52 is too little. So we need a z-score of 0.53. Let's write that down. 0.53, right over there, and we just now have to figure out what value gives us a z-score of 0.53.