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A new motorcycle is being developed to meet new gas mileage standards recently passed by the federal government. An engineer tested three model designs by randomly assigning the motorcycles in a blind study (the riders recorded the mileage but did not know the design of the motorcycle, only its code). The data in miles per gallon (MPG) for the three designs is listed below: X-1 B-1 Z-1 45 55 54 62 55 52 50 54 41 65 44 35 62 52 38 50 69 41 50 58 51 58 45 44 Using StatCrunch, determine the means for the three groups and compute the sums of squares, degrees of freedom, and mean squares for these data. What are the hypotheses to be tested here? What is the value of F? Using an alpha of 0.05, is the F statistic significant? Why? Copy and Paste your work from StatCrunch into your Word document submission for full credit.
the fracture strength of glass may be increased by etching away a thin surface e layer. it is believed that the etching
in a special test for determining the performance of a heat exchanger an electric heater produces a temperature
a 2 cm ice cube sits on a shelf of widely spaced aluminum rods 3mm in diameter in a refrigerator at 10oc. how rapidly
determine a) the angular accelerations of gears B and C, b) the accelerations of the points on gears B and C which are in contact when t = 0.5 s.
a manufacturer makes 7900000 memory chips per year. each chip takes 0.4 minutes of direct labor at 8hr. the overhead
The average temperature of the human body is 98.6°F. Calculate the maximum rate of heat transfer per unit area by radiation from the human body in a room that is at 50°F. What is the percent increase in the heat transfer if rate you are running a fev..
An Industrial water shutoff valve is designed to operate with 30lbs of force and will encounter 200lbs of resistance force applied to a 1.5in diameter axle. What is the required actual mechanical advantage of the system?
what is the reason for the change in enthalpy between the throttle valve and the evaporator in a practical refrigeration cycle that is using R12 refrigerant.
The hull of a boat has a volume of 150 m3, and the total mass of the boat when empty is 8560 kg. Determine how much load this boat can carry without sinking (a) in a lake and (b) in seawater with specific gravity of 1.03.
In the wind tunnel experiment, four wall taps are used to measure pressure. Are those wall taps used to measure pressure of the air very close to the wall surface? What is the velocity of air close to the wall surface? Are the wall taps used to measu..
a 600 lb wheel with a diameter of 30 in. rolls without slipping down a plane inclined at 25 degrees with the
a vertical wall is at a temperature of 100c. it is situated in a 20c room. if the height of the square wall is 10cm and
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