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.
How long before a check becomes void? A: According to RealSimple, banks are not required to honor personal checks that are more than six months old. Checks older than six months are considered stale dated, and it is up to the bank whether or not to honor them.