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As we now have a two-tail test our critical region of 5 % is split between the tails.
Comparing the means of the two subsets, the calculated t-statistic of 1.49 is statistically significant at the 10% level in a one-tail test (15.6% in a two-tail test).
For the early, later, and entire samples we found a statistically significant difference at the .01 level between firm disappearance in the sample and control groups for Years 0-3 individually, Years 1-4 collectively, and for the aggregate respective sample periods using the two-tail test. Therefore, H1a is supported by our study.
A test is either a one-tail or two-tail test, depending on the values of the sample result (usually, the sample proportion or sample mean) for which we reject the null hypothesis.
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- two-sheet detector
- two-sided ideal
- two-sided sampling plans
- two-sided test
- two-slit experiment
- two-slit interference
- two-socket server
- twosome
- two-source frequency keying
- two-sphere
- Two-Stage Combustion
- two-stage curing
- two-stage design
- two-stage experiment
- Two-Stage Furnace
- two-stage hoisting
- two-stage sampling
- two-state Turing machine
- two-step
- two-step flow in mass communications
- two-step grooving system
- two-step test
- two-stroke
- two-stroke cycle
- two-symbol Turing machine
- two-tail test
- two-tailed test
- Two-Terminal Network
- two-tier client/server
- Two-tiered porch
- two-tone diaphone
- two-tone keying
- two-tone modulation
- two-to-the-N
- Two-Value Principle
- two-valued logic
- two-valued variable
- two-way coupling
- two-way draw
- two-way joist construction
- two-way radio
- two-way reinforcement
- two-way series
- two-way slab
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- two-way valve
- two-way-reinforced footing
- two-wire circuit
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- Two-Step Dynamic Parity
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