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Comparing corn varieties. New varieties of corn with altered amino acid content may have higher nutritional value than standard corn, which is low in the amino acid lysine. An experiment compares two new varieties, called opaque-2 and floury-2, with normal corn. The researchers mix corn-soybean meal diets using each type of corn at each of three protein levels: 12% protein, 16% protein, and 20% protein. They feed each diet to 10 one-day-old male chicks and record their weight gains after 21 days. The weight gain of the chicks is a measure of the nutritional value of their diet.
(a) What are the individuals and the response variable in this experiment?
(b) How many explanatory variables are there? How many treatments? Use a diagram like Figure 6.1 to describe the treatments. How many experimental individuals does the experiment require?
(c) Use a diagram to describe a completely randomized design for this experiment. (Don't actually do the randomization.)
A river is L = 2.68 km wide. The banks are straight and parallel. The current is 2.6 km/h and is parallel to the banks. A boat has a maximum speed of 8 km/h in still water. The pilot of the boat aims the boat so that he crosses over to the far bank o..
a jeweler needs to electroplate gold atomic mass 196.97 u onto a bracelet. he knows that the charge carriers in the
The end milling cutter has two teeth and its diameter = 15.0mm. Find out the feed rate and time to complete the cut.
superkid finally fed up with superbullys obnoxious behaviour hurls a 1.95-kg stone at him at 0.547 of the speed of
A circular loop of radius 2.58 cm contains 65 turns of tightly wound wire. what torque acts on the loop
What is the period of oscillation of the scale? State your reply numerically in seconds.
what is the relative fraction of h atoms that are ionized in stars with surface t5800k and 11300k the atmospheres
A positively charged particle of mass 8.00 10-8 kg is traveling due east with a speed of 30 m/s and enters a 0.26-T uniform magnetic field. obtain the magnitude of the magnetic force acting on the particle
The period (time for a complete oscillation) of a simple pendulum depends on the pendulum s length L and the acceleration of gravity g. The dimensions of L are L, and the dimensions of g L/T2are Apart from dimensionless factors, how does the peri..
The average depth of Earth's oceans is 2.236 mi. Suppose 68% of the earth is covered in water and that the population of the earth is 6.33 billion. (a) How much water mass on the surface of earth is there per person and (b) to help visualize it, w..
A 59 g ball is fastened to one end of a string 64 cm long and the other end is held fixed at point O so that the string makes an angle of 25o with the vertical. Find the speed
An ideal gas occupies a volume of 3.0 cm3 at 20°C and atmospheric pressure. Determine the number of molecules of gas in the container
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