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.
If your bank/credit union allows you to cash or deposit a stale-dated check, make sure that the the check may still not clear. Sometimes, issuing institutions wonât honor the check if the account no longer holds sufficient funds, or if the holder of the account requested a stop-payment on the check.