OKLAHOMA’S NONPOINT SOURCE MANAGEMENT PROGRAM

A sample poll of 300 voters from district A and 200 voters from district B showed that 56% and 48% respectively favor the candidate Joe Schmo. (a) At a level of 95%, test the hypothesis that there is a difference in preference between the two districts. (b) At a level of 95%, test the hypothesis that the candidate is preferred in district A. ................
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