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  2. Sample size determination - Wikipedia

    en.wikipedia.org/wiki/Sample_size_determination

    The sample size is an important feature of any empirical study in which the goal is to make inferences about a population from a sample. In practice, the sample size used in a study is usually determined based on the cost, time, or convenience of collecting the data, and the need for it to offer sufficient statistical power .

  3. Glass batch calculation - Wikipedia

    en.wikipedia.org/wiki/Glass_batch_calculation

    An example batch calculation may be demonstrated here. The desired glass composition in wt% is: 67 SiO 2, 12 Na 2 O, 10 CaO, 5 Al 2 O 3, 1 K 2 O, 2 MgO, 3 B 2 O 3, and as raw materials are used sand, trona, lime, albite, orthoclase, dolomite, and borax. The formulas and molar masses of the glass and batch components are listed in the following ...

  4. Calculation of glass properties - Wikipedia

    en.wikipedia.org/wiki/Calculation_of_glass...

    The calculation of glass properties allows "fine-tuning" of desired material characteristics, e.g., the refractive index. [1]The calculation of glass properties (glass modeling) is used to predict glass properties of interest or glass behavior under certain conditions (e.g., during production) without experimental investigation, based on past data and experience, with the intention to save ...

  5. PS Power and Sample Size - Wikipedia

    en.wikipedia.org/wiki/PS_Power_and_Sample_Size

    Matched or independent study designs may be used. Power, sample size, and the detectable alternative hypothesis are interrelated. The user specifies any two of these three quantities and the program derives the third. A description of each calculation, written in English, is generated and may be copied into the user's documents.

  6. Template:Calculator-superimpose - Wikipedia

    en.wikipedia.org/wiki/Template:Calculator...

    If calculator gadget is not enabled, should just show the x_default and y_default values. Supports all the same parameters as {{ Superimpose }} except x and y are now formulas, and there are two new parameters: x_default and y_default for the initial x and y values.

  7. Cocktail glass - Wikipedia

    en.wikipedia.org/wiki/Cocktail_glass

    Invented in the late 19th century, its form derives from the fact that all cocktails are traditionally served chilled and contain an aromatic element. Thus, the stem allows the drinker to hold the glass without affecting the temperature of the drink, an important aspect due to the lack of added ice which in other drinks serves to cool the drink, [2] and the wide bowl places the surface of the ...

  8. File:Cocktail Glass (Martini).svg - Wikipedia

    en.wikipedia.org/wiki/File:Cocktail_Glass...

    Automatic tracing of complex images can produce overly-large files, inaccurate outlines, and often miss out smaller details completely. Please consider editing this image by hand in a vector editor to improve it.

  9. x̅ and s chart - Wikipedia

    en.wikipedia.org/wiki/X̅_and_s_chart

    The sample size is variable Computers can be used to ease the burden of calculation The "chart" actually consists of a pair of charts: One to monitor the process standard deviation and another to monitor the process mean, as is done with the x ¯ {\displaystyle {\bar {x}}} and R and individuals control charts .