test each of the following hypothesis using the given information.
Extracted text: 18. Н, : и3D50 H¸:µ>50, х 3D 52, о %3D9.5, п%330, а 3D0.01 19. Н, :р 3D75 H:µ#75 х%3D 77, о %3D10.5, п3 40, а%3D0.1
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