Power of a two-tailed test of a correlation coefficient
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?
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Heated Air at 1 atm and 100 F is to be transported in a 400-ft-long circular plastic duct at a rate of 12ft^3/s. If the head loss in the pipe is not to exceed 50 ft, determine the minimum diameter of the duct.
If the arm is 5.00 m long and pivots about one end, at what angular speed (in rpm) should it spin so that the acceleration of the lander is the same as the acceleration due to gravity at the surface of Europa?
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.
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
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?
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.
There are three candidates for a position. The candidates are interviewed independently by each member of a three person committee. A candidate will be hired if she is ranked first by at least two members of the committee.
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