[Solved] In a one-way ANOVA test,we conclude there are differences across population means if the A)between variation is small relative to the within variation. B)between variation and within variation are equal. C)between variation is large relative to the within variation. D)between variation equals zero. Optical Microscopes: Instruments that use visible light and a system of lenses to magnify small objects, allowing for the observation of details not visible to the naked eye. Physicians' Office Laboratories: Labs located within a physician's office where various tests are performed on clinical specimens to obtain information about the health of a patient. Objectives: The set of magnifying lenses contained in the nosepiece of a compound microscope. Optical Microscope: An instrument that uses visible light and a system of lenses to magnify images of small subjects.