Power is the probability that a study will reject the null hypothesis. The estimated. probability is a function of sample size, variability, level of significance, and the. difference between the null and alternative hypotheses. Similarly, the sample size. required to ensure a pre-specified power for a hypothesis test depends on variability, level of significance, and the null vs. alternative difference.
Nature of stale check. Stale check is a check that is presented to be cashed or deposited at a bank six months or more after the date it was written.
For example most checks are good for 90 or 120 days. If I have a cashier's check and don't see an expiration date on it, does it mean I can cash it even 5 years in the future?est Answer: Technically NO checks expire unless they state ON THE FACE of the check that they expire on X date, or Y days after issued. However, banks are NOT required to honor 'stale' checks, and US banks almost universally consider checks stale after 6 months.