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.
But if your stale check is for a small amount and the issuer is hard to track down, giving up may be the best course of action. As the $15 fee on a $5.25 stale check shows, there is a real risk to processing the stale $3 rebate check from some item you bought in 2003. In those cases, check with your bank manager, who may agree to put the check through and waive the fees you're a good customer.