<?xml version="1.0" encoding="utf-8"?>
<journal>
<title>Journal title</title>
<title_fa>عنوان نشریه</title_fa>
<short_title>International Journal of Industrial Engineering &amp; Production Management</short_title>
<subject>Literature &amp; Humanities</subject>
<web_url>http://ijiepm.iust.ac.ir</web_url>
<journal_hbi_system_id>18</journal_hbi_system_id>
<journal_hbi_system_user>agent2</journal_hbi_system_user>
<journal_id_issn></journal_id_issn>
<journal_id_issn_online></journal_id_issn_online>
<journal_id_pii></journal_id_pii>
<journal_id_doi>doi</journal_id_doi>
<journal_id_iranmedex></journal_id_iranmedex>
<journal_id_magiran></journal_id_magiran>
<journal_id_sid></journal_id_sid>
<journal_id_nlai></journal_id_nlai>
<journal_id_science></journal_id_science>
<language>fa</language>
<pubdate>
	<type>jalali</type>
	<year>1387</year>
	<month>9</month>
	<day>1</day>
</pubdate>
<pubdate>
	<type>gregorian</type>
	<year>2008</year>
	<month>12</month>
	<day>1</day>
</pubdate>
<volume>19</volume>
<number>4</number>
<publish_type>online</publish_type>
<publish_edition>1</publish_edition>
<article_type>fulltext</article_type>
<articleset>
	<article>


	<language>fa</language>
	<article_id_doi></article_id_doi>
	<title_fa>برآورد فاصله‌ای ضریب کارایی فرآیند</title_fa>
	<title>INTERVAL ESTIMATION PROCESS CAPABILITY INDEX</title>
	<subject_fa></subject_fa>
	<subject></subject>
	<content_type_fa>پژوهشي</content_type_fa>
	<content_type>Research</content_type>
	<abstract_fa>&lt;p align=&quot;right&quot;&gt;&lt;span lang=&quot;FA&quot; dir=&quot;rtl&quot; style=&quot;FONT-SIZE: 11pt FONT-FAMILY: Nazanin mso-fareast-font-family: 'Times New Roman' mso-ansi-language: EN-US mso-fareast-language: EN-US mso-bidi-language: FA mso-ascii-font-family: 'Times New Roman' mso-hansi-font-family: 'Times New Roman'&quot;&gt;چند مورد از خواص توزیع نمونه‌ای برآوردگر &lt;span style=&quot;POSITION: relative TOP: 7pt mso-text-raise: -7.0pt&quot;&gt;&lt;shapetype id=&quot;_x0000_t75&quot; stroked=&quot;f&quot; filled=&quot;f&quot; path=&quot;m@4@5l@4@11@9@11@9@5xe&quot; o:preferrelative=&quot;t&quot; o:spt=&quot;75&quot; coordsize=&quot;21600,21600&quot;&gt;&lt;stroke joinstyle=&quot;miter&quot; &gt;&lt;formulas&gt;&lt;f eqn=&quot;if lineDrawn pixelLineWidth 0&quot; &gt;&lt;f eqn=&quot;sum @0 1 0&quot; &gt;&lt;f eqn=&quot;sum 0 0 @1&quot; &gt;&lt;f eqn=&quot;prod @2 1 2&quot; &gt;&lt;f eqn=&quot;prod @3 21600 pixelWidth&quot; &gt;&lt;f eqn=&quot;prod @3 21600 pixelHeight&quot; &gt;&lt;f eqn=&quot;sum @0 0 1&quot; &gt;&lt;f eqn=&quot;prod @6 1 2&quot; &gt;&lt;f eqn=&quot;prod @7 21600 pixelWidth&quot; &gt;&lt;f eqn=&quot;sum @8 21600 0&quot; &gt;&lt;f eqn=&quot;prod @7 21600 pixelHeight&quot; &gt;&lt;f eqn=&quot;sum @10 21600 0&quot; &gt;&lt;/formulas&gt;&lt;p ath o:connecttype=&quot;rect&quot; gradientshapeok=&quot;t&quot; o:extrusionok=&quot;f&quot;  &gt;&lt;lock aspectratio=&quot;t&quot; v:ext=&quot;edit&quot; &gt;&lt;/shapetype&gt;&lt;shape id=&quot;_x0000_i1025&quot; style=&quot;WIDTH: 20.25pt HEIGHT: 18.75pt&quot; type=&quot;#_x0000_t75&quot;&gt;&lt;imagedata src=&quot;file:///C:DOCUME~1userLOCALS~1Tempmsohtml1 1clip_image001.wmz&quot; &gt;&lt;/shape&gt;&lt;/span&gt;&lt;font face=&quot;Nazanin&quot;&gt;&lt;span style=&quot;mso-spacerun: yes&quot;&gt;&lt;font size=&quot;3&quot;&gt; &lt;/font&gt;&lt;/span&gt;عبارتند از: نرمال بودن، &lt;/font&gt;&lt;/span&gt;&lt;span lang=&quot;FA&quot; dir=&quot;rtl&quot; style=&quot;FONT-SIZE: 11pt FONT-FAMILY: Nazanin mso-fareast-font-family: 'Times New Roman' mso-ansi-language: EN-US mso-fareast-language: EN-US mso-bidi-language: FA mso-ascii-font-family: Tahoma mso-hansi-font-family: Tahoma&quot;&gt;استقلال و همتوزیع بودن داده‌هاست. در این مقاله امید ریاضی و واریانس و چولگی &lt;/span&gt;&lt;span lang=&quot;FA&quot; dir=&quot;rtl&quot; style=&quot;FONT-SIZE: 11pt FONT-FAMILY: Nazanin mso-fareast-font-family: 'Times New Roman' mso-ansi-language: EN-US mso-fareast-language: EN-US mso-bidi-language: FA mso-ascii-font-family: 'Times New Roman' mso-hansi-font-family: 'Times New Roman'&quot;&gt;&lt;span style=&quot;POSITION: relative TOP: 7pt mso-text-raise: -7.0pt&quot;&gt;&lt;shape id=&quot;_x0000_i1026&quot; style=&quot;WIDTH: 20.25pt HEIGHT: 18.75pt&quot; type=&quot;#_x0000_t75&quot;&gt;&lt;imagedata src=&quot;file:///C:DOCUME~1userLOCALS~1Tempmsohtml1 1clip_image001.wmz&quot; &gt;&lt;/shape&gt;&lt;/span&gt;&lt;font face=&quot;Nazanin&quot;&gt;&lt;span style=&quot;mso-spacerun: yes&quot;&gt;&lt;font size=&quot;3&quot;&gt; &lt;/font&gt;&lt;/span&gt;به روش آماری محاسبه شده‌است. نظر به اینکه توزیع نمونه‌ای، چولگی ضعیفی دارد می‌توان نتیجه گرفت که برآوردگر فاصله‌ای متقارن&lt;/font&gt;&lt;span style=&quot;POSITION: relative TOP: 7pt mso-text-raise: -7.0pt&quot;&gt;&lt;shape id=&quot;_x0000_i1027&quot; style=&quot;WIDTH: 20.25pt HEIGHT: 18.75pt&quot; type=&quot;#_x0000_t75&quot;&gt;&lt;font size=&quot;3&quot;&gt;&lt;font face=&quot;Nazanin&quot;&gt; &lt;imagedata src=&quot;file:///C:DOCUME~1userLOCALS~1Tempmsohtml1 1clip_image001.wmz&quot; &gt;&lt;/font&gt;&lt;/font&gt;&lt;/shape&gt;&lt;/span&gt;&lt;font face=&quot;Nazanin&quot;&gt;&lt;span style=&quot;mso-spacerun: yes&quot;&gt;&lt;font size=&quot;3&quot;&gt; &lt;/font&gt;&lt;/span&gt;منطقی است. نیز یک برآورردگر فاصله‌ای متقارن طراحی شده‌است.&lt;/font&gt;&lt;/span&gt;&lt;/p&gt;</abstract_fa>
	<abstract>&lt;span style=&quot;FONT-SIZE: 10pt FONT-FAMILY: &quot;Times New Roman&quot; mso-fareast-font-family: 'Times New Roman' mso-ansi-language: EN-US mso-fareast-language: EN-US mso-bidi-language: AR-SA&quot;&gt;Several sampling distribution properties of the estimator for Cpk are presented under the assumption that the data are normal, independent and identically distributed. In this paper using these assumptions, the expectation, variance and skewness are calculated by statistical methods, since the sampling distribution is weakly skewed, it is concluded that a symmetric interval estimator for Cpk might be reasonable. Also a symmetric interval estimator has been developed&lt;/span&gt;</abstract>
	<keyword_fa>حدود معنی‌داری، توزیع نرمال، توزیع نمونه‌ای، ضریب کارایی فرآیند، برآورد، حدود تلورانس، چولگی</keyword_fa>
	<keyword></keyword>
	<start_page>55</start_page>
	<end_page>61</end_page>
	<web_url>http://ijiepm.iust.ac.ir/browse.php?a_code=A-10-1-93&amp;slc_lang=fa&amp;sid=1</web_url>


<author_list>
	<author>
	<first_name>M. </first_name>
	<middle_name></middle_name>
	<last_name>Nikoukar Zanjani</last_name>
	<suffix></suffix>
	<first_name_fa></first_name_fa>
	<middle_name_fa></middle_name_fa>
	<last_name_fa></last_name_fa>
	<suffix_fa></suffix_fa>
	<email></email>
	<code>180031947532846001346</code>
	<orcid>180031947532846001346</orcid>
	<coreauthor>No</coreauthor>
	<affiliation></affiliation>
	<affiliation_fa></affiliation_fa>
	 </author>


	<author>
	<first_name>S.M.T.</first_name>
	<middle_name></middle_name>
	<last_name>Fatemi Ghomi</last_name>
	<suffix></suffix>
	<first_name_fa></first_name_fa>
	<middle_name_fa></middle_name_fa>
	<last_name_fa></last_name_fa>
	<suffix_fa></suffix_fa>
	<email>fatemi@aut.ac.ir</email>
	<code>180031947532846001408</code>
	<orcid>180031947532846001408</orcid>
	<coreauthor>Yes
</coreauthor>
	<affiliation></affiliation>
	<affiliation_fa></affiliation_fa>
	 </author>


	<author>
	<first_name>P. </first_name>
	<middle_name></middle_name>
	<last_name>Bahmani</last_name>
	<suffix></suffix>
	<first_name_fa></first_name_fa>
	<middle_name_fa></middle_name_fa>
	<last_name_fa></last_name_fa>
	<suffix_fa></suffix_fa>
	<email>pbahmani210@yahoo.com</email>
	<code>180031947532846001409</code>
	<orcid>180031947532846001409</orcid>
	<coreauthor>No</coreauthor>
	<affiliation></affiliation>
	<affiliation_fa></affiliation_fa>
	 </author>


</author_list>


	</article>
</articleset>
</journal>
