Mathematics, 24.07.2019 09:30 1Angel2Got3Brains
What conditions are necessary in order to use the z-test to test the difference between two population means? select all the necessary conditions below. a. each population has a normal distribution with a known standard deviation. b. the samples are paired. c. the samples must be independent. d. the samples must be randomly selected?
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How can you find the magnitude of a vector, v = < x,y > , where the horizontal change is x and the vertical change is y?
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Aboat has a speed of 9 mph in calm water. it takes the boat 4 hours to travel upstream but only 2 hours to travel the same distance downstream. which equation can be used to find c, the speed of the current? 2(9 – c) = 4(9 + c) 9 + c = 4(9 – c) 9 – c = 2(9 + c) 4(9 – c) = 2(9 + c)
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What conditions are necessary in order to use the z-test to test the difference between two populati...
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