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.
Whatever the Expiration Date Says. Many payroll checks include a restrictive legend that asks the bank not to cash the check if it is older than a certain amount of days. In this case, you should cash it before this expiry date to avoid any hassles.n general, all checks become stale after six months. However, state law may require that banks honor any payroll claim, even if the date on the restrictive legend has passed. In addition, banks typically do not look at the date on a check, so it will likely get cashed.