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.
RE: ff: Most checks are stale dated after 6 months, unless specified by the check. IE: Not valid after 90 days or something similar. However, say for instance you wrote a check in December of last year and the person you wrote it to just cashed it yesterday. When you get your monthly statement for July, you can dispute anything on your account for up to 60 days past the date you received your statement.