Testing can be conducted sequentially or in parallel. In sequential testing, often the easiest to implement, the various versions of the webpages are made available online for a specified time period. In parallel (split) testing, both versions are made available, and the traffic is divided between the two. The results of sequential split testing can be skewed by differing time periods and traffic patterns in which the different tests are run.
FACT: This amendment ensures essential health benefits are the federal law of the land and maintains other important protections. States have the option to obtain a waiver regarding federal essential health benefits, but the state must publicly attest its purpose for doing so (to reduce the cost of health care coverage, increase the number of people with health care coverage, etc.) and it must specify the benefits it will require instead of the federal standard. NO STATE, under ANY circumstances, may ever obtain a waiver for pre-existing condition protection, prohibition on gender discrimination, for guaranteed issue and renewability, or for the right of dependents to stay on a family plan up to age 26.