NQuery Sample Size Software: Difference between revisions

Revision as of 21:06, 15 July 2018

Revision as of 05:52, 20 August 2018

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{{advert|date=May 2018}}

{{Lowercase title}}

{{Infobox Software

{{Infobox_Software

| name = nQuery Sample Size Software

| logo = NQuery Sample Size Software Logo.png

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| logo_caption = nQuery Sample Size Software logo

| logo size = 400px

| genre = [[Sample size determination|Sample Size]] [[Category:Sampling (statistics)]]
[[Statistical power|Statistical Power Calculation]] [[Statistical hypothesis testing|Statistical Hypothesis Testing]]

| developer = [[Statsols]]

| latest release version = nQuery Advanced 8.2

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'''nQuery Sample Size Software''' is statistical software used to calculate [[Sample size determination|Sample size]] and [[Statistical power]]. It is most commonly used by Biostatisticians to determine how many people are needed to enroll into a [[Clinical trial]].

nQuery is proprietary software developed and distributed by [[Statsols|Statsols]]. nQuery includes calculations for close to 1000 sample size and power scenarios.

==nQuery history==

[[Janet_DJanet D._Elashoff Elashoff|Janet Dixon Elashoff]] is a now-retired American statistician and daughter of the mathematician and statistician [[Wilfrid Dixon|Wilfrid Joseph Dixon]], creator of BMDP. J. Elashoff is also the retired Director of the Division of Biostatistics, [[Cedars-Sinai Medical Center]]. While at [[University of California, Los Angeles|UCLA]] and Cedars-Sinai during the 1990s, she wrote the program nQuery Sample Size Software (then known as nQuery Advisor). This quickly became widely used to estimate the sample size requirements for pharmaceutical testing and she joined the company Statistical Solutions LLC to commercialize it. <ref name=cherfriis>{{citation|title=Introductory Biostatistics for the Health Sciences: Modern Applications Including Bootstrap|series=Wiley series in probability and statistics|first1=Michael R.|last1=Chernick|first2=Robert H.|last2=Friis|publisher=John Wiley & Sons|year=2003|isbn=9780471458654|page=360|url=https://books.google.com/books?id=QRwuz6yA97oC&pg=PA360}}</ref>

[[File:NQuery_Powering_Sample_Size.jpg|thumb|nQuery Sample Size Software Logo]]

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* [http://www.statsols.com/ Official Statsols Page for nQuery Sample Size Software]

[[Category:Sampling (statistics)]]

[[Category:Science software]]

[[Category:Statistical software]]

[[Category:Sampling (statistics)]]