نتایج جستجو برای: joint confidence interval

تعداد نتایج: 457874  

Journal: :Korean Journal of Applied Statistics 2014

Journal: :Communications for Statistical Applications and Methods 2009

Journal: :Open Journal of Statistics 2023

When dealing with a regular (fixed-support) one-parameter distribution, the corresponding maximum-likelihood estimator (MLE) is, to good approximation, normally distributed. But, when support boundaries are functions of parameter, finding approximation for sampling distribution MLE (needed construct an accurate confidence interval parameter’s true value) may get very challenging. We demonstrate...

Journal: :middle east journal of cancer 0
elham haem department of biostatistics, school of medicine, shiraz university of medical sciences, shiraz, iran seyyed taghi heydari research center for social determinants of health, jahrom university of medical sciences, jahrom, iran najaf zare department of biostatistics, research center of fertility and infertility, school of medicine, shiraz university of medical sciences, shiraz, iran kamran b. lankarani health policy research center, shiraz university of medical sciences, shiraz, iran esmat barooti ministry of health and medical education, women’s affairs office, tehran, iran farkhondeh sharif faculty of nursing and midwifery, shiraz university of medical sciences, shiraz, iran

background : this study evaluated the role of family history of cancer and gynecologic factors in relation to the etiology of ovarian cancer in a low socioeconomic population in iran. methods : from 2007-2009 we conducted a screening program on women with insurance coverage provided by the imam khomeini relief foundation. a total of 26788 women participated in this study of whom 76 cases had ov...

ژورنال: اندیشه آماری 2014

For computing different point estimates such as method of moment and maximum like-lihood estimates and different interval estimates (classical confidence interval, unbi-ased confidence interval, HPD interval), we may deal with the equations which need be solved numerically. In this paper, some numerical methods for solving these type of equations are reviewed in S-PLUS package. Various examples...

Amirhosein Ghahremanian, Hamed Kord Varkaneh, Mehran Pezeshki, Sakineh Shab-Bidar, Somaye Fatahi,

Background: Trying to find a drug with more clinical efficacy in treating obesity is one of the priorities. The aim of this study was to evaluate the efficacy of orlistat, sibutramine, lorcaserin and metformin on weight loss in obese people. Methods: The databases of PubMed, Scopus, Google Scholar and Cochran Library were searched up to November 2016. In present study search strategy was perfo...

2015
Ali Akbar Jafari Hojatollah Zakerzadeh

The Weibull distribution is a very applicable model for lifetime data. In this paper, we have investigated inference on the parameters of Weibull distribution based on record values. We first propose a simple and exact test and a confidence interval for the shape parameter. Then, in addition to a generalized confidence interval, a generalized test variable is derived for the scale parameter whe...

ژورنال: اندیشه آماری 2019
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‎In this paper‎, ‎in order to establish a confidence interval (general and shortest) for quantiles of normal distribution in the case of one population‎, ‎we present a pivotal quantity that has non-central t distribution‎. ‎In the case of two independent normal populations‎, ‎we construct a confidence interval for the difference quantiles based on the generalized pivotal quantity and introduce ...

Journal: :iranian journal of child neurology 0
fariba bahrami department of physiotherapy, school of rehabilitation sciences, iran university of medical sciences shohreh noorizadehdehkordi department of physiotherapy, school of rehabilitation sciences, iran university of medical sciences mehdi dadgoo department of physiotherapy, school of rehabilitation sciences, iran university of medical sciences

abstract objectives, the purpose of this research was to evaluate of the intra-rater and inter-raters reliability of the 10 meter walk test (10 mwt) in 30 adults with spastic cerebral palsy (cp) with subgroup analyses in gross motor function classification system (gmfcs). material & methods, participants  (19 men, 11 women; mean age 27 y and 9 mo) with gmfcs levels below iv (i, ii, and iii) non...

The forecast is very complex in financial markets. The reasons for this are the fluctuation of financial data, Such as Stock index data over time. The determining a model for forecasting fluctuations, can play a significant role in investors deci-sion making in financial markets. In the present paper, the Black Scholes model in the prediction of stock on year later value, on using data from mel...

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