Detect a correlation coefficient
What sample size is needed to detect a correlation coefficient as small as 0.50 with a two-tailed test at the 0.05 alpha level with 90% power?
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Weekly samples of wet acid deposition were collected for a 1-month period. Calculate the average pH and determine how many more times acidic the average sample is than a theoretical clear air sample with pH=5.65. Measured pH values were 3.3, 4.2,
Estimate the speed of the airplane, assuming incompressible flow. Assume air to be an ideal gas with gas constant of 287 J/kg.K.
What is the power of a two-tailed test of a correlation coefficient (Ho: ?=0, Ha: ? ?0) at the 0.05 level if the sample size is 40 and the true correlation is 0.35?
Determine how many CoCl3 formula units can be produced from are action mixture containing 525 cobalt atoms and 525 HCLmolecules according to the following reacton
Find the minimum velocity ‘v' at which the barrel just rolls over the stopper without slipping. The radius of gyration of the barrel is ‘k' and it can be assumed that the angular impulse of is negligible.
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The total pipe length from the reference point to tank B is 500ft. Tank B is also at atmospheric pressure. Calculate the flow to each tank in gallons per minute . Show all work
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