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Sample Size Determination - North Carolina State University

Title: Sample Size Determination Author: Tom Reiland Last modified by: reiland Created Date: 12/2/1996 11:58:40 AM Document presentation format: On-screen Show (4:3)

http://www.stat.ncsu.edu/people/reiland/courses/st350/SAMPSIZE_p_sp08.ppt

Date added: October 25, 2011 - Views: 13

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Sample size determination - University of Pretoria

Statistical planning and Sample size determination Planning Which variables will I collect and how will they be measured? What types of data do they represent?

http://web.up.ac.za/sitefiles/15_samplesize.ppt

Date added: February 5, 2013 - Views: 15

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Sample Size Determination.ppt

Module 28 Sample Size Determination This module explores the process of estimating the sample size required for detecting differences of a specified magnitude for three common circumstances.

http://biostatcourse.fiu.edu/PPT/MODULE%2028%20Sample%20Size%20Determination%2019%20July%2005.ppt

Date added: September 27, 2014 - Views: 1

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Sampling and Sample Size Determination - University of Lethbridge

Title: Sampling and Sample Size Determination Author: Sandy Cahoon Last modified by: Sandy Cahoon Created Date: 3/15/2004 9:20:52 PM Document presentation format

http://classes.uleth.ca/200402/mgt2700b/Lectures/Sampling%20and%20Sample%20Size%20Determination.ppt

Date added: October 8, 2011 - Views: 89

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Sample Size Determination - North Carolina State University

5.6 Determining Sample Size to Estimate Required Sample Size To Estimate a Population Mean If you desire a C% confidence interval for a population mean with an accuracy specified by you, how large does the sample size need to be?

http://www.stat.ncsu.edu/people/reiland/courses/st350/SAMPSIZE_mu_f09.ppt

Date added: May 20, 2013 - Views: 6

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Sample Size Determination - WVU College of Business and Economics

Sample Size Determination Everything You Ever Wanted to Know About Sampling Distributions--And More! Sampling Distribution A frequency distribution of all the means obtained from all the samples of a given size Example: $$ spent on CD’s at Best Buy Daffy $34.00 Donald $72.00 Sylvester $36.00 ...

http://www.be.wvu.edu/divmim/mktg/france/graduateresearch/sampling/samplesizedetermination.ppt

Date added: December 7, 2011 - Views: 27

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Determination of Sample Size

Determination of Sample Size DR R.P. NERURKAR Associate Professor Dept. of Pharmacology T.N. MEDICAL COLLEGE B.Y.L NAIR HOSPITAL, MUMBAI AYUSH Workshop

http://xa.yimg.com/kq/groups/17458078/332206535/name/Dr+Nerurkar+-+Determination+of+Sample+Size.ppt

Date added: January 28, 2012 - Views: 76

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Sample size determination - Raywat Deonandan

Sample size determination Nick Barrowman, PhD Senior Statistician Clinical Research Unit, CHEO Research Institute March 29, 2010 Outline Example: lowering blood pressure Introduction to some statistical issues in sample size determination Two simple approximate formulas Descriptions of sample ...

http://classes.deonandan.com/hss4303/2010/mar29samplesize.ppt

Date added: June 7, 2013 - Views: 15

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Chapter 13: Determination of Sample Size: A Review of ...

Determination of Sample Size: A Review of Statistical Theory Chapter 13 Sample v. Population Inferential Descriptive Sample statistics Population parameters Tables Frequency distribution Percentage distribution Probability Proportion Measures of Central Tendency Mean Median Mode Measures of ...

http://faculty.rio.edu/wthoene/MKT%20Classes2/MKT%20Research/Determinaton%20of%20Sample%20Size.ppt

Date added: June 16, 2013 - Views: 7

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Sampling Procedures and sample size determination.

Sampling Procedures and sample size determination. Prepared by dr. Surej for Mr students of Assumption University.

http://surejpjohn.com/website/wp-content/uploads/2013/05/Sampling-Procedures-and-sample-size-determination.pptx

Date added: August 24, 2014 - Views: 1

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Experimental design,basic statistics, andsample size ...

Experimental design, basic statistics, and sample size determination Karl W Broman Department of Biostatistics Johns Hopkins Bloomberg School of Public Health

http://www.pitt.edu/~super7/32011-33001/32881-32901.ppt

Date added: September 28, 2011 - Views: 93

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RESEARCH ETHICS - Boston University Medical Campus

Sample Size Determination Janice Weinberg, ScD Professor of Biostatistics ... SAMPLE SIZE: How many subjects are needed to assure a given probability of detecting a statistically significant effect of a given magnitude if one truly exists?

http://www.bumc.bu.edu/facdev-medicine/files/2012/03/Sample-Size-Determination-03202012.ppt

Date added: May 3, 2013 - Views: 11

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Sample Size Determination - McMaster Faculty of Health Sciences

Sample Size Determination Inappropriate Wording or Reporting “A previous study in this area recruited 150 subjects & found highly sign. Results” Previous study may have been lucky “Sample sizes are not provided because there is no prior information on which to base them” Do a pilot study ...

http://www.fhs.mcmaster.ca/surgery/documents/SampleSizeDeterminationof19Nov2008byDr.N.Strumas.ppt

Date added: November 8, 2011 - Views: 97

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Issues in Sample Size Determination - Virginia Institute for ...

Issues in sample size determination Sample size formulas depend on Study design Outcome measure Dichotomous Ordered Continuous Time to event (survival)

http://www.vipbg.vcu.edu/psy691/CC12McClish.ppt

Date added: December 20, 2013 - Views: 7

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Clinical Trials A short course

Statistical Methods in Clinical Trials Sample Size Determination Ziad Taib Biostatistics AstraZeneca March 12, 2012 * * * * 88 134 256 844 2152 0.9 65 100 191 631 1607 0.8 51 79 150 496 1264 0.7 32 49 94 309 787 0.5 2.00 1.75 1.50 1.25 1.15 power The number of events needed for a certain power ...

http://www.math.chalmers.se/Stat/Grundutb/GU/MSA620/S12/Sample2012.ppt

Date added: May 2, 2013 - Views: 14

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Sample Size Determination

5.6 Determining Sample Size to Estimate Required Sample Size To Estimate a Population Mean If you desire a C% confidence interval for a population mean with an accuracy specified by you, how large does the sample size need to be?

http://ic.arc.losrios.edu/~mirzaam/Statistics/PPT/6C.ppt

Date added: October 22, 2014 - Views: 1

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SAMPLING: Process of Selecting your Observations

n = Z2 p(1-p) / E2 SAMPLING: Process of Selecting your Observations Sample size determination for Estimating Proportions: EXAMPLE: Suppose you are to project the percentage of potential voters who would be expected to vote for the Republican candidate in the upcoming presidential election ...

http://my.ilstu.edu/~mhemmas/LDR%20280/LDR%20280%20Lecture%20Slides/7.%20Sampling%20&%20Sample%20Size%20Determination-LDR%20280.ppt

Date added: June 28, 2012 - Views: 32

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Sample Size Determination in Studies Where Health State ...

Title: Sample Size Determination in Studies Where Health State Utility Assessments Are The Measures of Interest. How many subjects do I nneed to caddess

http://people.qc.cuny.edu/faculty/christopher.hanusa/research/Documents/posters/ENARreport.ppt

Date added: December 12, 2013 - Views: 2

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Determining the Size of a Sample

Special Sample Size Determination Situations Sampling from small populations: Small population: sample exceeds 5% of total population size Finite multiplier: ...

http://faculty.kutztown.edu/jwilliam/pwr_pt_slides/marketing_research/burns05_ppt13.ppt

Date added: September 16, 2013 - Views: 7

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bbch13.ppt.ppt - Homepages at WMU

Special Sample Size Determination Situations Sample Size Using Nonprobability Sampling When using nonprobability sampling, ... The Confidence Interval Method of Determining Sample Size The relationship between sample size and sample error: ...

http://homepages.wmich.edu/~lindquis/marketing%20research%20ppt/bbch13.ppt.ppt

Date added: February 2, 2012 - Views: 40

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Experimental design - University of Wisconsin–Madison

Experimental design and sample size determination Karl W Broman Department of Biostatistics Johns Hopkins University http://www.biostat.jhsph.edu/~kbroman

http://www.biostat.wisc.edu/%7Ekbroman/presentations/acuc.ppt

Date added: October 29, 2011 - Views: 109

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Sampling and Sample Size Determination - University of Lethbridge

Title: Sampling and Sample Size Determination Author: Sandy Cahoon Last modified by: sandy.cahoon Created Date: 3/15/2004 9:20:52 PM Document presentation format

http://classes.uleth.ca/200403/mgt2700a/Lectures/Sampling%20.ppt

Date added: September 17, 2011 - Views: 76

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Hypothesis Testing and Sample Size Calculation - Marshfield ...

Title: Hypothesis Testing and Sample Size Calculation Author: elliottj Last modified by: brickwek Created Date: 1/7/2002 3:33:32 PM Document presentation format

http://www3.marshfieldclinic.org/proxy/MCRF-Admin-OSWP-RM-Biostat_Basics_Hyp_and_SS.1.ppt

Date added: May 13, 2013 - Views: 23

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SAMPLE SIZE ESTIMATION - E-Library for the Post-graduate ...

FRAMEWORK. What is sample size? & Why it required? Practical issues in determining sample sizes. Determining sample size. Sample size calculation by different ways

http://pglibrary-publichealth.wikispaces.com/file/view/sample+size+estimation.pptx

Date added: February 6, 2013 - Views: 27

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PowerPoint Presentation

Sample size formula for difference in means Examples Example 1: You want to calculate how much power you will have to see a difference of 3.0 IQ points between two groups: 30 male doctors and 30 female doctors.

http://web.stanford.edu/~kcobb/hrp259/lecture11.ppt

Date added: June 29, 2014 - Views: 2

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Sampling Technique & Sampling Size - University of Pittsburgh

... smallest unit from which sample can be selected Sampling frame List of all the sampling units from which sample is drawn Sampling scheme Method of selecting sampling units from sampling frame Types of ... Compute the minimal sample size required at a confidence limit of 95% and ...

http://www.pitt.edu/~super4/33011-34001/33841.ppt

Date added: September 7, 2011 - Views: 172

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Sampling - APMF

Basics of sampling I A sample is a “part of a whole to show what the rest is like”. ... Conventional approach of Sample size determination using Sample size determination using statistical formulae: ...

http://www.apmf.org.sg/Topic4.ppt

Date added: October 27, 2011 - Views: 93

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Determining the Size of a Sample - s, su

In the name of God Determining the Size of a Sample Dr Mohammad Hossein Fallahzade

http://www.ssu.ac.ir/fileadmin/templates/fa/Moavenatha/Moavenate-Amozeshi/Upload_MBAmozeshi/EDc/kargah/new.sample_size_for_conference.ppt

Date added: September 24, 2011 - Views: 9

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SAMPLING DISTRIBUTIONS - Hacettepe Üniversitesi

SAMPLE SIZE DETERMINATION Reasons for Sampling Samples can be studied more quickly than populations. A study of a sample is less expensive than studying an entire population, because smaller number of items or subjects are examined.

http://www.biyoistatistik.hacettepe.edu.tr/lisans/phaseIII/Determination_of_sample_size.pps

Date added: June 13, 2012 - Views: 8

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Basic Business Statistics, 9th Edition - pearsoncmg.com

... Total Discussed Confidence Interval Estimation for Total Difference in the Population Addressed Estimation and Sample Size Determination for Finite Population Addressed Confidence Interval Estimation and Ethical Issues Basic Business Statistics ...

http://myphliputil.pearsoncmg.com/student/bp_berenson_bbs_9/chap08.ppt

Date added: November 22, 2013 - Views: 2

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Business Research Methods William G. Zikmund

Business Research Methods William G. Zikmund Chapter 17: Determination of Sample Size What does Statistics Mean? Descriptive statistics Number of people Trends in employment Data Inferential statistics Make an inference about a population from a sample Population Parameter Versus Sample ...

http://www.swlearning.com/management/zikmund/bus_research/powerpoint/ch17.ppt

Date added: October 26, 2011 - Views: 15

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No Slide Title

Chapter XII Sampling: Final and Initial Sample Size Determination Chapter Outline 1) Overview 2) Definitions and Symbols 3) The Sampling Distribution 4) Statistical approaches to Determining Sample Size 5) Confidence Intervals i.

http://directory.umm.ac.id/Slide_Kuliah/PPT/RM_Malhotra/chapter12.ppt

Date added: August 2, 2013 - Views: 5

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Population and Sampling

Sample Size Mahmoud Alhussami, DSc., PhD Sample Size Determination Is the act of choosing the number of observations or replicates to include in a statistical sample.

http://judoctor2011.files.wordpress.com/2014/02/sample-size.ppt

Date added: August 4, 2014 - Views: 1

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No Slide Title

Title: No Slide Title Subject: Ch12 Sample Size Determination Author: Charles Pflanz Last modified by: TL User Created Date: 1/20/2000 5:25:32 PM Document presentation format

http://higheredbcs.wiley.com/legacy/college/mcdaniel/0470003626/ppt/ch13.ppt

Date added: March 19, 2012 - Views: 9

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No Slide Title

Survey Sample Size MKTG 3342 Fall 2008 Professor Edward Fox Survey Sample Size MKTG 3342 Fall 2008 Professor Edward Fox Sample Size Determination Convenience – Say … about 100. Rule of Thumb - At least 30 per each subgroup (e.g., males/females) that will be analyzed. Budget ...

http://efox.cox.smu.edu/mktg3342/lec10-sampsize.ppt

Date added: September 14, 2011 - Views: 14

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Sampling - European Centre for Disease Prevention and Control

Questions in sample size calculation Issues in sample size estimation Estimate sample needed to measure the factor of interest Trade-off between study size and resources Sample size determined by various factors: significance level (α ...

http://www.ecdc.europa.eu/en/epiet/courses/Documents/26-Sample_size_2012.ppt

Date added: November 25, 2013 - Views: 4

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MARKETING RESEARCH - Husson University

MARKETING RESEARCH CHAPTERS 11 Questionnaire and Form Design 12 Sampling: Design and Procedures 13 Sampling: Final and Initial Sample Size Determination

http://cookc.husson.edu/MARKETING%20RESEARCH%20Chapters11-13.ppt

Date added: May 22, 2014 - Views: 8

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Statistics for Business and Economics, 7/e

Statistics for Business and Economics 7th Edition Chapter 8 Estimation: Additional Topics Copyright © 2010 Pearson Education, Inc. Publishing as Prentice Hall

http://h222767.temppublish.com/21_BS/chap08.ppt

Date added: November 29, 2013 - Views: 2

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Statistics for Managers Using Microsoft Excel, 3/e

using Microsoft Excel 3rd Edition Chapter 6 Confidence Interval Estimation Chapter Topics Estimation process Point estimates Interval estimates Confidence interval estimation for the mean ( known) Determining sample size Confidence interval estimation for the mean ( unknown) Confidence interval ...

http://myphliputil.pearsoncmg.com/student/levine4/chap06.ppt

Date added: May 5, 2013 - Views: 16

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Statistics for Business and Economics, 6/e

Sample Size Determination Sample Size Determination Sample Size Determination The sample and population proportions, and P, are generally not known (since no sample has been taken yet) P(1 – P) = 0.25 generates the largest possible margin of error ...

http://home.sandiego.edu/~kdoshi/QBA%20Powerpoints/chap09.ppt

Date added: November 29, 2013 - Views: 11

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Chapter 9

Sample Size Determination for a Variable To find the sample size for a variable: ... Factors Affecting Confidence Interval Estimates The factors that determine the width of a confidence interval are: 1.The sample size, ...

http://www.unf.edu/~jgleaton/STA2023Ch09.ppt

Date added: September 14, 2011 - Views: 65

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No Slide Title

Title: No Slide Title Subject: Ch12 Sample Size Determination Author: Charles Pflanz revised by B. R. Oates Last modified by: Barbara R. Oates Created Date

http://homepages.stmartin.edu/fac_staff/ppatterson/Principles%20of%20Marketing/chapter11.ppt

Date added: May 2, 2012 - Views: 5

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Experimental design - University of Wisconsin–Madison

Experimental design, basic statistics, and sample size determination Karl W Broman Department of Biostatistics Johns Hopkins Bloomberg School of Public Health

http://www.biostat.wisc.edu/~kbroman/teaching/misc/humanesci.ppt

Date added: May 7, 2013 - Views: 18

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GUIDELINES ON SAMPLING OF YOUTH With Emphasis on Those in ...

Indicators for Sample Size Determination Sample size is different for each MICS indicator. Must choose a key indicator, since only one sample size can be used in MICS. Recommendations for choosing key indicator: Choose from among main indicators of interest in your country.

http://www.childinfo.org/files/Sampling.ppt

Date added: September 7, 2011 - Views: 27

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Power and Sample Size Analysis - UCLA Integrated ...

Power and Sample Size Analysis David Huang, Dr. PH. Integrated Substance Abuse Treatment Programs, University of California, Los Angeles November 18, 2011

http://www.uclaisap.org/slides/caldar/Huang%20Power%20Analysis11182011.ppt

Date added: June 29, 2012 - Views: 29

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Sampling - unisi.it

Sample size determination using statistical formulae: The confidence interval approach To determine sample sizes using statistical formulae, researchers use the confidence interval approach based on the following factors: ...

http://www.econ-pol.unisi.it/didattica/analisi_statistica_imprese_RM/ASIRM_2012.13/slide2_marketing%20research%20sample.ppt

Date added: March 28, 2014 - Views: 1

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Chapter Ten - KFUPM Open Courseware

Chapter Twelve Sampling: Final and Initial Sample Size Determination 12-* © 2007 Prentice Hall

http://opencourseware.kfupm.edu.sa/colleges/cim/mktmgt/mkt512/files%5C2-Presentations_malhotra_ORGNL_ppt_12.ppt

Date added: September 3, 2014 - Views: 1

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Audit Sampling: Concepts and Techniques - University of Delaware

PPS Sampling Determination of Sample Size PBV = population book value RF = reliability factor (Table 9-14) TM = tolerable misstatement EM = expected misstatement EF = expansion factor (Table 9-15) ...

http://www.buec.udel.edu/jenkinsd/Powerpoint/Chp09.ppt

Date added: September 7, 2011 - Views: 321

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Estimation/Confidence Intervals for Popn Mean

One Sample Mean Inference (Chapter 5) In Unit 2 we will discuss: How to estimate the mean from a normal distribution and compute a 95% confidence interval for the true unknown population mean.

http://www.math.ttu.edu/~atrindad/stat5302-5303/Lectures/U2.1-OneSampleMeanCI.ppt

Date added: June 30, 2012 - Views: 4

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SAMPLE SIZE CONSIDERATION IN CLINICAL RESEARCH

Determination of Sample Size Depends on: Outcome measure (Data Endpoint) Study Design Types of Data Endpoints Continuous Data - BP, BMI, TC, LDL, Blood Sugar Categorical Data - Hypertension, Obese, Dyslipidemia, Diabetes Count Data ...

http://www.georgetownhowardctsa.org/File%20Library/Researchers/DBPS/SampleSizeConsideration.ppt

Date added: May 28, 2013 - Views: 6