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In a sanitary landfill cH4 (methane) is to be collected as a by-product. Two flows of methane mix adiabatically on a continuous basis. one stream flows at 0.5 kg/min. at 600k with a pressure of 150 kpa and the other flows at 0.8 kg/min. at 300k with a pressureof 120 kpa. The mixing of the two streams continues into a single duct at 110 kpa. Assuming ideal gas behavior, calculate the temperature at the exit methane stream and the entropy change (uses pressures and temperatures) of the methane.
Airplaneflight during the last year. If we take a random sample of 40 adults, the probability is 0.37 that the sample proportion is greater than what number.
Student who scores in the top 5% of statewide scores. How high should a student score be to win this award? Give your answer to the nearest integer.
That a sample of 40 females gives an average production which is more than that based on a sample of 36 males by more than 6 items, assuming sampling with replacement, and that, the sample size for the two sexes being the same, the average product..
A local hardware store claims that the mean waiting time in line is less than 3.5 minutes. A random sample of 20 customers has a mean of 3.7 minutes with a standard deviation of 0.8 minute. If α = 0.05, test the store's claim.
A pharmaceutical firm as a sales rep
What type of research design is the strongest when I what to adopt a new educational program? Using a pre-test and post-test with control group, the previous method but without the control group.
use normal approximation to estimate the probability of getting more than 49 girls in 100 births. assume that boys and
Suppose that possibility of being seated at two restaurants are independent of each other, determine the probability that. Both restaurants will be able to seat you next Saturday night?
What method is best suited for such a survey? Draw the sample using the random number table and bring out the rationale of the procedure.
tree diagram for a probability experiment.identify the sample space of the probability experiment and determine the
Because each roll has six possible even values (2, 4, 6, 8, 10, and 12) and only five possible odd values (3, 5, 7, 9, and 11), the dice should show even values more often than odd values. Do you agree with this statement? Explain.
What type of error would result in that case? Respond to at least two of your classmate's postings.
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