谁会做这道统计学题（感谢）!!!!!!!!

[必胜]

A grain loader can be set to discharge grain in amounts that are normally distributed, with mean u bushels and standard deviation equal to 25.7 bushels. If a company wishes to use the loader to fill containers that hold 2000 bushels of grain and wants to overfill only one container in 100, at what value of u should the company set the loader?

 

[天使信差]

我觉得啊,不一定对啊

应该是 Mea 加减 3 倍的standard deviation 乘以 Z (查表时候查 99%)

 

[必胜]

Thank you!!