Determining the Results of a Simple Experiment. Once the data from the simple experiment has been gathered, researchers then compare the results of the experimental group to those of the control group to determine if the treatment had an effect.
A low appraisal means that the buyer must increase the downpayment amount unless the seller agrees to reduce the purchase price. Both may require an extension of the closing date to allow time to resolve the issue. The buyer must notify the seller of these issues. Any extension must be agreed upon by both parties.
An extension letter is usually written at least 30 days before the expiration of the lease. However, it is recommended to write the letter at least 60 days before the expiration date of the lease to give the tenant or landlord more time to consider any major changes in the lease.