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Explore the relationship between the selling prices (Y) and the appraised values (X) of the 148 homes in the file P02_11.xlsx by estimating a simple linear regression equation. Find a 95% confidence interval for the model's slope parameter (β1). What does this confidence interval tell you about the relationship between Y and X for these data?
two tissues a and b are placed in a gas chamber and equilibrated with carbon monoxide gas at various partial pressures
you have three blocks of different materials at various temperatures. they are 2-kg block of iron at 600 k a 3-kg block
calculate the exergies of two closed systems respectively 1 kg of steam at 800 kpa and 180 degc and 1 kg of r-134a at
a wheel barrow is used to lift a 200 lb load. the length from the wheel axle to the center of the load is 2 ft. the
each cycle the working fluid of a sterling engine receives 2.67 kj of energy in the heat interaction with its
steam with 88.6% quality and a flow rate of 750 kg/s enters a condenser operating @ 75 KPa. Saturated liquid leaves the condenser. How much heat is rejected to the cooling system.
a wyre has tensile strength of 80 ksi and a diam 0.19. starting material 1 diam rod. after going through steps you
a bicyclist of mass 70kg supplies 300 watts of power while riding into a 3ms headwind. the frontal area of the
in an automotive gas turbine the centrifugal compressor is driven at 40000 rpm by an axial turbine. the compressor
Solid glass-polymer reinforced composite rod (diameter = 100 mm) is simultaneously torqued clockwise (T = 1,000 Nm) and given a tensile load (P = 0). Determine shear strain. Determine extensional strains in n and t directions.
Consider the vorticity sheet that sheds from the trailing edge of a wing. Briefly explain the type of deformation this sheet undergoes with stream wise distance in an in viscid context, and the mechanism responsible for this deformation.
The shaft is hollow of external diameter 75 mm and in4ternal diameter 40 mm. The density of the shaft material is 7700 kg/m3 and its modul us of elasticity is 200GN/m2. Find the lowest whirling speed of the shaft, taking into account the mass of t..
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