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1. (a) Prove that no 2-temperature refrigerator operating between reservoirs at hotter and colder temperatures Th and Tc has a greater coefficient of performance than a Carnot refrigerator. Use diagrams of the type introduced in the chapter.
(b) Find the minimum amount of electrical energy needed to create 0.50 kg of ice from water at 0 °C in a household freezer that rejects heat to a room at 20 °C.
2. Show that a heat pump with a coefficient of performance COPh greater than a heat pump that operates on a Carnot cycle would violate Clausius' statement of the second law.
Select a US citizen and a citizen of China at random, independently of one another. Determine the probability that both have type O blood?
Test the manager's suspicion at the 5% level of significance. Find the P-value or an interval containing the P-value for the sample test statistic.
What are the five steps in the hypothesis testing procedure, what does each step represent, what are the advantages and disadvantages of using a hypothesis testing procedure?
Describe the difference between the distribution of the observed sample values from a population and the distribution of means calculated from samples of size n.
a box contains eight 8 light bulbs of which three 3 are defective. a bulb is selected from the box and tested. if it is
q.1 an experiment was designed to compare several different types of air pollution monitors. the monitor was set up and
you are the vp for the cardiovascular service line at a hospital. a nurse manager on the step-down-unit tells you about
At that point, the mean becomes a random variable and the means of some of the different samples are 187, 192, 184, . . . 196. What can you say about the means of the sample with respect to the population mean?
if the sample standard deviation is 10.5 and the sample mean is 48 based on a study with a sample size of 120 the 95
On the basis of the data provided, can you conclude that online gambling is more prevalent among individuals who are under the age of 30 at a level of significance of 0.05? Why or why not? (Show all seven steps of the appropriate hypothesis test.
How do I create a real-life situation that fits into the equation(x+3) (x-4) = 0 and express the situation as the same equation?
Prepare a brief report with the items noted so it is ready for Dr. Starr at the next meeting. What is your recommendation concerning the ability of the food service to be self-supporting
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