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an agricultural researcher plants 25 plots with a new variety of corn.The mean yield for these...

an agricultural researcher plants 25 plots with a new variety of corn.The mean yield for these plots is 150 bushels per acre. assume that the yield per acre for the new variety of corn follows a normal distribution with standard deviation 10 bushels. use the given information to test if the unknown population mean yield is different than 153 bushels at a significance level 3%
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