1. A researcher suspected that the number of between meals snacks eaten by students in a day during final examinations might depend on the number of tests a students had to take on that day. The accompanying table shows joint probabilities, estimated from a survey Number of tests (X) Number of snacks(Y) 0 1 2 […]
1.A market can be described by the equations Qd = 100 A????1 P and Qs= P. What are the equilibrium price and quantity in thismarket? A. The equilibrium price is $50 and the equilibrium quantity is50 units. B. The equilibrium price is $100 and the equilibrium quantity is100 units. C. The equilibrium price is $0 […]
1. A patient lives for two periods, 1 and 2. Her well-being in period 2 depends on her state of health, s = 0, in which larger numbers imply better health status, as well as some healthrelated action t = 0 which is taken in period 1, but has a health impact in period 2. […]
1.A group of researchers conducted an experiment to determine which vaccine is more effective for preventing getting the flu. They tested two different types of vaccines: a shot and a nasal spray. To test the effectiveness, 1000 participants were randomly selected with 500 people getting the shot and 500 the nasal spray. Of the 500 […]
1. A gearbox is modeled as which comprises two identical gears of moments of inertia J1 and N1 teeth, meshing with two identical pinions of moments of inertia J2 and N2 teeth. All three shafts have stiffness k. For the relations given below: find the natural frequencies and natural modes of the system. Sketch the […]
1.A group of researchers conducted an experiment to determine which vaccine is more effective for preventing getting the flu. They tested two different types of vaccines: a shot and a nasal spray. To test the effectiveness, 1000 participants were randomly selected with 500 people getting the shot and 500 the nasal spray. Of the 500 […]
1. (a) For the circuit shown in FIGURE 1 sketch the voltage waveform across the secondary winding of the transformer. On the same diagram sketch the load voltage waveform. The sketches should take into account diode voltage drops. Indicate the following on the sketches: (i) when diodes are conducting and in what order (ii) when […]
1. .A flat turbine agitator with a disk having six blades is installed in a tank. The tank diameter is1.83 m, the turbine diameter is 0.61 m, Dt = H, and the width W is 0.122 m. The tank contains four baffles, each having a width of J = 0.15 m. The turbine is operated […]
1. a firm’s workforce is on average 20 years away from retiring. The firm’s workers Suppose could find similar work in other companies earning $40,000 per year. Also, suppose that workers who shirk their work have a .30 chance of being dismissed. a. For simplicity, assume that workers could find a job in an alternative […]
1. Assume Country Cinderella is having a fractional banking system. The First National Bankacquires $600,000 in new deposits and initially uses part of this to make new loans of $400,000.The T-account of First National Bank, showing changes in its assets and liabilities, is asfollows:AssetsLiabilitiesChange in Reserves $200,000Change in Loans $400,000Change in Deposits $600,000a) Assume that […]
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