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2. Sign test - Wikipedia

   en.wikipedia.org/wiki/Sign_test

   The sign test is a statistical method to test for consistent differences between pairs of observations, such as the weight of subjects before and after treatment. Given pairs of observations (such as weight pre- and post-treatment) for each subject, the sign test determines if one member of the pair (such as pre-treatment) tends to be greater than (or less than) the other member of the pair ...

3. Sampling (signal processing) - Wikipedia

   en.wikipedia.org/wiki/Sampling_(signal_processing)

   In signal processing, sampling is the reduction of a continuous-time signal to a discrete-time signal. A common example is the conversion of a sound wave to a sequence of "samples". A sample is a value of the signal at a point in time and/or space; this definition differs from the term's usage in statistics, which refers to a set of such values.

4. Urine Glucose Test: Purpose, Procedure, and Results - Healthline

   www.healthline.com/health/glucose-test-urine

   The normal amount of glucose in urine is 0 to 0.8 mmol/L (millimoles per liter). A higher measurement could be a sign of a health problem. Diabetes is the most common cause of elevated glucose levels.

5. Sampling (statistics) - Wikipedia

   en.wikipedia.org/wiki/Sampling_(statistics)

   Sampling (statistics) In statistics, quality assurance, and survey methodology, sampling is the selection of a subset or a statistical sample (termed sample for short) of individuals from within a statistical population to estimate characteristics of the whole population. The subset is meant to reflect the whole population and statisticians ...

6. Urinalysis Urine Test: Types, Results, Nitrites/Nitrates, pH ...

   www.webmd.com/a-to-z-guides/what-is-urinalysis

   It’s dipped into your urine, and the chemicals on the stick react and change color if levels are above normal. Things the dipstick test can check for include: Acidity, or pH. If the acid is ...

7. Email address - Wikipedia

   en.wikipedia.org/wiki/Email_address

   Email address. An email address identifies an email box to which messages are delivered. While early messaging systems used a variety of formats for addressing, today, email addresses follow a set of specific rules originally standardized by the Internet Engineering Task Force (IETF) in the 1980s, and updated by RFC 5322 and 6854.