Statistics PHD Program

Hi everyone, I’m a undergraduate student majored in Math, and I’m thinking about applying for statistics phd program
this year. I would love to get into phd programs at Stanford, Harvard, Berkeley, UChicago,etc. Does anyone have any experience that can share with me that can increase my chance?

(Besides Stanford, they also say GRE subject math recommended. But I wonder how important the test is or am I gonna be fine without the subject math GRE?)

Thanks

ask this on the graduate school forum

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