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Grade 12th passAlgebra

Does the difference in mean yields indicate that phosphorous has some effect as a fertilizer??
This test is one tailed or two tailed

Profile image of Karthik
7 Years agoGrade 12th pass
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1 Answer

Profile image of Saurabh Koranglekar
7 Years ago
Dear student

Kindly explain the problem more elaborately, so that we can conclude whether its a two-tailedor one-tailed test