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2. Sample size determination - Wikipedia

   en.wikipedia.org/wiki/Sample_size_determination

   To determine the sample size n required for a confidence interval of width W, with W/2 as the margin of error on each side of the sample mean, the equation Z σ n = W / 2 {\displaystyle {\frac {Z\sigma }{\sqrt {n}}}=W/2} can be solved.

3. Islamic marriage contract - Wikipedia

   en.wikipedia.org/wiki/Islamic_marriage_contract

   A bride signing the nikah nama ( marriage contract ). An Islamic marriage contract is considered an integral part of an Islamic marriage, and outlines the rights and responsibilities of the husband and wife or other parties involved in marriage proceedings under Sharia. Whether it is considered a formal, binding contract depends on the ...

4. Sampling (statistics) - Wikipedia

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

   Formulas, tables, and power function charts are well known approaches to determine sample size. Steps for using sample size tables: Postulate the effect size of interest, α, and β. Check sample size table. Select the table corresponding to the selected α; Locate the row corresponding to the desired power; Locate the column corresponding to ...

5. Dowry - Wikipedia

   en.wikipedia.org/wiki/Dowry

   A dowry is a payment, such as property or money, paid by the bride's family to the groom or his family at the time of marriage. Dowry contrasts with the related concepts of bride price and dower. While bride price or bride service is a payment by the groom, or his family, to the bride, or her family, dowry is the wealth transferred from the ...

6. Wedding dress - Wikipedia

   en.wikipedia.org/wiki/Wedding_dress

   A wedding dress or bridal gown is the dress worn by the bride during a wedding ceremony. The color, style and ceremonial importance of the gown can depend on the religion and culture of the wedding participants. In Western culture, the wedding dress is most commonly white, a fashion made popular by Queen Victoria when she married

7. Point-biserial correlation coefficient - Wikipedia

   en.wikipedia.org/wiki/Point-biserial_correlation...

   Further, n 1 is the number of data points in group 1, n 0 is the number of data points in group 2 and n is the total sample size. This formula is a computational formula that has been derived from the formula for r XY in order to reduce steps in the calculation; it is easier to compute than r XY. There is an equivalent formula that uses s n−1: