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An aircraft is flying at a cruising speed of 250 m/s at an altitude of 5000 m where the atmospheric pressure is 54.05 kPa and the ambient air temperature is 255.7 K. The ambient air is first decelerated in a diffuser before it enters the compressor. Assuming both the diffuser and the compressor to be isentropic, determine (a) the stagnation pressure at the compressor inlet and (b) the required compressor work per unit mass if the stagnation pressure ratio of the compressor is 8.
sales 2363 2.1 advertising - 279 price - 136 unemplpyment r2 .76units of measurement sales is in product units
Test the claim that the Snickers bars have a mean weight that is different than 20.1 grams. Because shutting down the plant is very expensive, test the claim at the .01 level of significance.
according to a newspaper report in 2 million lie detector tests 300000 were estimated to have produced erroneous
In an effort to control costs associated inventory management, a study was conducted on the relationship between sales (X, in billions of US dollars) and inventory levels (Y, in billions of US dollars), with a random sample of size 20. You are ass..
let x be a random variable with fxx 2x3 if xgt1. compute pxgtk and compare it with the upper bound on this quantity
the kenmont carbide company has two machines that produce a certain product. machine 1 produces 40 of the product and
If probability the first truck is available is= .75, probability the second truck is available is= .50, and probability both are available is= .30, determine the probability which neither truck is available?
the u.s. department of transportation reported that during november 83.4 of southwest airlines flights 75.1 of us
what is the relationship between sample size and the width of the confidence interval? please explain further as to
Show how to figure the significance level, the test statistic, and the critical values from this test.
assume that you have a box with an equal number of 4 6 8 chips.a. find the population mean and the standard
the middle 53 of a normally distributed population lies between what two standard scores? give your answers correct to
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