TASK DEFINITION: In this task you will be given an answer to a question. You need to generate a question. The answer given should be a correct answer for the generated question.
PROBLEM: The design of experiments (DOE, DOX, or experimental design) is the design of any task that aims to describe or explain the variation of information under conditions that are hypothesized to reflect the variation. The term is generally associated with true experiments in which the design introduces conditions that directly affect the variation, but may also refer to the design of quasi-experiments, in which natural conditions that influence the variation are selected for observation.

SOLUTION: the objective of design of experiments (doe) is to

PROBLEM: Stewart International Airport, officially New York Stewart International Airport (IATA: SWF, ICAO: KSWF, FAA LID: SWF) is a public / military airport in Orange County, New York, United States. It is in the southern Hudson Valley, west of Newburgh, New York, approximately 60 miles (97 km) north of Manhattan, New York City. The airport is in the Town of Newburgh and the Town of New Windsor. It is included in the Federal Aviation Administration (FAA) National Plan of Integrated Airport Systems for 2017 -- 2021, in which it is categorized as a non-hub primary commercial service facility.

SOLUTION: what is the airport code for stewart international airport

PROBLEM: Emery boards are generally less abrasive than the metal nail files, and hence, emery boards may take longer to file down nails than metal nail files. However, nail files may play a role in disease transmission if they are used on more than one person without adequate sterilization. Emery boards are usually less expensive than metal nail files, therefore emery boards can be economically disposed of after use on a single person. The nail can be smoothed and shaped accurately by taking light, even strokes in one direction across the top of the nail. Twenty to thirty easy strokes can typically shorten excessively long fingernails, while five to ten strokes are sufficient for shaping the nails.

SOLUTION:
what is the difference between emery board and nail file