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Sample size and statistical analysis

Design, statistical analysis and sample size calculation of a phase IIb/III study of linagliptin versus voglibose and placebo

Design, statistical analysis and sample size calculation of a phase IIb/III study of linagliptin versus voglibose and placebo

... relationship for any new drug is confirmed in the Japanese population and that treatment is evaluated in 'adequate numbers of Japanese cases' [10]. The primary objectives of the proposed study are to com- pare the ...

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Sample Size Guideline for Correlation Analysis

Sample Size Guideline for Correlation Analysis

... Correlation analysis is a common statistical analysis in various ...correlation analysis is to plan for the sufficient sample ...the analysis be able to reach a desired minimum ...

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Sample Size Determination and Statistical Hypothesis Testing for Core Centration in Press Coated Tablets

Sample Size Determination and Statistical Hypothesis Testing for Core Centration in Press Coated Tablets

... small sample of tablets (see Section 2), dyeing of the cut surface to distinguish the core from the coat, taking pictures of the cut surface with a digital camera, analysis of the pictures using image ...

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STATISTICAL PATTERNS OF TRAFFIC DATA AND SAMPLE SIZE ESTIMATION

STATISTICAL PATTERNS OF TRAFFIC DATA AND SAMPLE SIZE ESTIMATION

... INTRODUCTION Sample size estimation is fundamental to traffic engineering ...Typically, sample size estimation is based on the standard deviation of the performance measure under ...required ...

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Efficient Determination of Sampling Rate and Sample Size in Statistical Process Control

Efficient Determination of Sampling Rate and Sample Size in Statistical Process Control

... sample size for the control ...of statistical control and from data not affected by special causes) the CTQ dynamics is not affected by s(t), which operates at frequencies much slower than the CTQ ...

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Efficient Determination of Sampling Rate and Sample Size in Statistical Process Control

Efficient Determination of Sampling Rate and Sample Size in Statistical Process Control

... sample size for the control ...of statistical control and from data not affected by special causes) the CTQ dynamics is not affected by s(t), which operates at frequencies much slower than the CTQ ...

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A STATISTICAL SAMPLE ANALYSIS OF LATVIAN LOGISTICS SERVICES

A STATISTICAL SAMPLE ANALYSIS OF LATVIAN LOGISTICS SERVICES

... E-mail: [email protected] In the analysis are represented collected data, poll opinions and their interpretation of Latvian logistics service. The focus was made for three groups of companies: ...

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Stroke aetiological classification reliability and effect on trial sample size: systematic review, meta analysis and statistical modelling

Stroke aetiological classification reliability and effect on trial sample size: systematic review, meta analysis and statistical modelling

... other outcomes may also be relevant and subject to mis- classification effects, for example functional recovery or non-fatal adverse events. We use anticoagulation in the context of AF as a model, as these were the data ...

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A sample size planning approach that considers both statistical significance and clinical significance

A sample size planning approach that considers both statistical significance and clinical significance

... usual sample size calculation or the investigator can directly estimate the sample size required such that LCL and UCL are bounded by relevant cut-offs with high ...

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Sample Size Requirements for Assessing Statistical Moments of Simulated Crop Yield Distributions

Sample Size Requirements for Assessing Statistical Moments of Simulated Crop Yield Distributions

... Despite the fact that we considered two different crops, two sites and two climate scenarios, our study cannot have the pretension of being exhaustive and further work is needed to develop general rules. Future research ...

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Sample size and power considerations in network meta-analysis

Sample size and power considerations in network meta-analysis

... advanced statistical regression techniques (i.e., network meta-analysis) that are beyond the scope of this article ...of sample size and power considerations, it suffices to understand that ...

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Sample size determination for mediation analysis of longitudinal data

Sample size determination for mediation analysis of longitudinal data

... special statistical methods, such as the multilevel model ...vestigate sample size determination for longitudinal mediation ...the sample size when designing longitudinal mediation ...

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Economic-statistical Design of NP Control Chart with Variable Sample Size and Sampling Interval

Economic-statistical Design of NP Control Chart with Variable Sample Size and Sampling Interval

... 3. 2. Analysis Approach The response value of each parameter in all processes depends on several factors. For this reason, for a thorough and comprehensive examination of a process, the factors affecting the ...

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AdmixPower: Statistical Power and Sample Size Estimation for Mapping Genetic Loci in Admixed Populations

AdmixPower: Statistical Power and Sample Size Estimation for Mapping Genetic Loci in Admixed Populations

... and sample size requirements for association mapping in genetically homogeneous populations of European ancestry, power and sample size estimation methods for mapping genes in genetically ...

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Sample size estimation and power analysis for clinical research studies

Sample size estimation and power analysis for clinical research studies

... CONCLUSION Sample size determination is an important major step in the design of a research ...that sample estimated are reflective of underlying population ...The sample size required ...

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Effect of Sample Size on Cotton Plant Mapping Analysis and Results

Effect of Sample Size on Cotton Plant Mapping Analysis and Results

... of statistical power has been used successfully in bio- logical research to determine the associated risks of overlooking real differences between treatments due to insufficient sample size (Thomas ...

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Sample size calculations for model validation in linear regression analysis

Sample size calculations for model validation in linear regression analysis

... adequate statistical power and sufficient sample size to detect scientifically credible ...well-recognized statistical tool, the corresponding power and sample size problem for ...

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Studying sample sizes for demand analysis: analysis on the size of calibration and hold out sample for choice model appraisal

Studying sample sizes for demand analysis: analysis on the size of calibration and hold out sample for choice model appraisal

... 2.1 Random utility theory Choices concerning transport demand are made among a finite number of discrete alternatives. Travel demand models attempt to reproduce users’ choice behaviour. The random utility theory is the ...

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CiteSeerX — Sample size in factor analysis

CiteSeerX — Sample size in factor analysis

... When unique factor weights are small (high communalities), the impact of this source of sampling error will be small regardless of sample size, and recovery of population factors should [r] ...

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Sample Size Issues for Conjoint Analysis

Sample Size Issues for Conjoint Analysis

... result, sample sizes are typically larger than with ACA or traditional ratings-based con- joint, and choice-based conjoint (CBC) results have traditionally been analyzed by aggregating ...a sample ...

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