Weigh the cylinder and liquid, and then calculate the density of the liquid. Repeat this procedure to find the density of each liquid. 2) Determine the density of each of the above, using a hydrometer and an ungraduated cylinder. Read the density from where the liquid crosses the hydrometer's scale. 3) Weigh and record the mass of an unknown metal cylinder. Also record the identity of the unknown metal cylinder (A, B, C, or D).
Over-the-counter ZYRTECÂ® is a medicine that provides effective, 24-hour relief of indoor and outdoor allergy symptoms. ZYRTECÂ® had been available by prescription for years, but since January 2008, it is available over the counter.
The essential difference between a z-score and t-test is that the z-score provides and requires information about the ___ whereas the t-test makes estimates from the ___.