The methodology of this survey has been designed to limit the number of errors and to reduce their potential effects. However, the results of the survey remain subject to both sampling and non-sampling error.
As the data are based on a sample of persons, they are subject to sampling error. That is, estimates based on a sample will vary from sample to sample, and typically they will be different from the results that would have been obtained from a complete census. More precise estimates of the sampling variability of estimates can be produced with the bootstrap method using bootstrap weights that have been created for this survey. The bootstrap method was used to estimate the sampling variability for all of the estimates produced based on the data from the 2013 GSS SI. Estimates with high sampling variability are indicated in this publication and all of the highlighted differences between subgroups of the population are significant at the 5% level.
First, System test plan is prepared to make our self ready to prepare the entire system which is being developed from the scratch. System test plan is prepared only if the application or product is completely new. And the application or product need to undergo all type of testing like Functional, Performance, Load, Certification, UAT etc.
Second, Integration test plan is prepared if a product or application being developed by several team or several developers and if one complete module output is going to be as a input for another module, then this Integration Test Plan will be useful to plan accordingly. So when two systems being integrated the possibilities of issues are like software compatibility, input variable map etc. So these needs to be tested completed when its integrated. Hope its clear now.
There are characteristics unique to cetaceans. The first one is the posterior process that is enlarged from the posterior crus, forming the primary bullar articulation to the basicranium. The second defining characteristic is that the sigmoid process is enlarged. The third characteristic is a conical apophysis that is modified from the ectotympanic ring. Then there is the conical tympani ligament, derived from the tympanic membrane. Lastly, the involucrum formed from the pachyosteosclerosis of the bulla.  These unique traits evolved overtime, from the terrestrial Pakicetidae to the crown whales today.