Standard deviation of the population
A sample of n = 4 scores has a standard error of 12. What is the standard deviation of the population from which the sample was obtained? Explain your response.
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Which of the following samples would have the smallest standard error? Explain your response.
A 1.5 kg mass is shot straight up with an initial speed of 3 m/s. What is the kinetic energy of the mass when it is launched, how much work does the gravitational force do on the mass during its accent, what is the potential energy during accent,
Describe the dynamic equilibrium that exists in the two water tanks. Explain how LeChatelier's principle applies when the faucet on the right tank is opened.
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What would happen to a reaction mixture in an iodine clockreaction experiment involving the mixture of starch, NaHO3 and KIO3 if sulfuric acid were added? Explain.
For (a) Refrigerant 134a, (b) propane, (c) water, (d) refrigerant 22 and (e) ammonia as the working fluid, determine the operating pressures in the condenser and evaporator, in lbf/in², and the coefficient of performance.
Your 2.25kg physics book rest on a horizontal tabletop. a) find the normal force on the book b) suppose you pull up on the book with a 15.0 N force. Now what's the normal force?
How much of the water is in a liquid state when the piston moves (give me a mass in kg)? What is the boundary work accomplished in kilojoules to three significant digits.
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