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.
What is the difference between a bank draft and a check? While banks in some states must consult the writer of the stale check before depositing or cashing it, checks never technically expire unless the person writing the check makes a note that it is only valid until a certain date.