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1.A cylinder containing 19 kg of compressed air at a pressure 9.5 times that of the atmosphere is kept in a store at 7 degrees Celsius. When it is moved to a workshop where the temperature is 27 degrees Celsius a safety valve on the cylinder operates, releasing some of the air. If the valve allows air to escape when its pressure exceeds 10 times that of the atmosphere, Calculate the mass of air that escapes..
2. Calculate approximately the quantum number n for a one litre volume of helium gas at room temperature. the mass of helium atom is 6.65 x 10^-37 kg.
A company that builds homes advertises that, by choosing from its upgrade options, each of its new homes is available in 512 different variations.
Use MINITAB to compute power and sample size for an upper-tailed, one sample z-test, with σ = 4, designed to detect a difference of 2, at the signi?cance level of α = 0.05: (1) if n = 25, determine the resulting power;
Dice. The seller of a loaded die claims that it will favor the outcome 6. We don't believe that claim, and roll the die 200 times to test an appropriate.
If you have n independent flips of a coin with probability p of landing heads. And a changeover occurs whenever an outcome differs from the one preceding it.
What were the forces that led Europeans and particularly Spain, to explore the new world?
A candy company claims that 21?% of its plain candies are? orange, and a sample of 100 such candies is randomly selected.
What is the probability that the last four digits of a nine-digit social security number are all odd? (Don't use a simulation, just working with the numeric fra
Chapter ten data set two contains the population of scores for the ten other classes in Marks university. How did Marks class do?
Darnell lives in an area where labor is plentiful and locations for start-ups are relatively cheap. He is also confident that he can find start-up funds for a graphic arts business. As he evaluates the opportunity for his proposed venture, wh..
Using SPSS, analyse the relationship between (i) gender and the extent to which people enjoy their job - explain each test and the results of each test
Is the percentage of speeding tickets issued to blacks unusually high compared to the state's registration information?- Does this prove that racial profiling may be present?
An accounting firm carries an advertisement in The Wall Street Journal. The firm estimates that 60% of the people in the potential market read The Wall Street.
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