Journal of Reliability and Statistical Studies最新文献_第8页

ESTIMATION OF PARAMETERS FOR THE LIFETIME DISTRIBUTIONS 寿命分布参数的估计

IF 0.8

Journal of Reliability and Statistical Studies Pub Date : 2019-11-07 DOI: 10.13052/jrss2229-5666.1227

Tabasam Sultana, Faqir Muhammad, M. Aslam

引用次数: 1

AN OPTIMIZATION OF FEOQ MODEL FOR WEIBULL DETERIORATING ITEMS WITH INFLATIONARY CONDITION 通货膨胀条件下WEIBULL恶化项目的FEOQ模型优化

IF 0.8

Journal of Reliability and Statistical Studies Pub Date : 2019-10-22 DOI: 10.13052/jrss2229-5666.1224

Anu Sayal, A. Singh, Deepak Aggarwal

{"title":"AN OPTIMIZATION OF FEOQ MODEL FOR WEIBULL DETERIORATING ITEMS WITH INFLATIONARY CONDITION","authors":"Anu Sayal, A. Singh, Deepak Aggarwal","doi":"10.13052/jrss2229-5666.1224","DOIUrl":"https://doi.org/10.13052/jrss2229-5666.1224","url":null,"abstract":"The economic instability is a haunting situation in the present era for the economy. There is a monetary depreciation due to the tremendous increase in the price of the commodities. Present study basically deals with the investigation of the inventory system considering the case of perishable products under inflationary environment under condition of partial backorder. The rate of demand is a function which exponentially increases with increase in inflation and deterioration is taken as a Weibull distributed two parameter function. In the state of shortage when the inventory system runs out of stock an assumption is made that the demands are backlogged or lost. There is a variation in the rate of backlogging which shows this variation as a consequence of lead time required for the arrival of the next replenishment. The deterioration of commodities begins after a fixed interval of time. Present model aims at minimizing the average total cost considering both the crisp and fuzzy environments considering both inflationary effect as well as the time value of money. For the fuzzy economic order quantity (FEOQ) model of the inventory system fuzzification has been done by the use of fuzzy number of the trapezoidal nature. Defuzzification has been done by the use of centroid method. The primary motive of this work is to determine and compare the cost in total of the system of inventory in both crisp and fuzzy environments. The main inference that we can draw from this study is that fuzzy economic order quantity (FEOQ) model has more accuracy as in this model the total cost has been reduced as compared to the crisp model. Thus fuzzy economic order quantity (FEOQ) model is highly beneficial to any sort of inventory system and this result can be further generalized to any sector for enhancing the total profit of the system. Appropriate example has been provided for the illustration of both the models. \u0000 ","PeriodicalId":42526,"journal":{"name":"Journal of Reliability and Statistical Studies","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2019-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46131752","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

MODELS FOR ANALYZING OVER-DISPERSED HURDLE NEGATIVE BINOMIAL REGRESSION MODEL: AN APPLICATION TO MANUFACTURED CIGARETTE USE 过分散障碍负二项回归模型的分析模型:在成品卷烟使用中的应用

IF 0.8

Journal of Reliability and Statistical Studies Pub Date : 2019-10-13 DOI: 10.13052/jrss2229-5666.1225

Sujan Rudra, S. Biswas

引用次数: 1

LITERATE LIFE EXPECTANCY AND ITS GENDER DIFFERENTIALS IN OMAN 阿曼的识字预期寿命及其性别差异

IF 0.8

Journal of Reliability and Statistical Studies Pub Date : 2019-10-12 DOI: 10.13052/jrss2229-5666.1223

M. Islam, M. H. R. Khan

{"title":"LITERATE LIFE EXPECTANCY AND ITS GENDER DIFFERENTIALS IN OMAN","authors":"M. Islam, M. H. R. Khan","doi":"10.13052/jrss2229-5666.1223","DOIUrl":"https://doi.org/10.13052/jrss2229-5666.1223","url":null,"abstract":"Measuring human quality and well-being by the human development index (HDI) is very challenging as it is a composite index of many socio-economic variables. However, a simple index called literate life expectancy (LLE) by combining life expectancy and literacy only can be used as an alternative measure, which is less data intensive than HDI. LLE is the average life expectancy that a person lives under literate state. Length of life in literate state has many positive implications on social, economic and political aspects of life. In this paper an attempt has been made to construct LLE for Omani population with its gender differentials. The data for the study were extracted from the 2015 Statistical Year Book and the 2010 Population and Census report of Oman published by the National Centre for Statistics & Information. Despite socioeconomic progress, levels of education among women in Oman are not the same as men. The analysis shows the remarkable differences in the LLE between men and women for almost all age groups. The Omani female population is much lag behind in literate life expectancy than the Omani male population. The results underscore the need to take necessary steps for reducing gender gap in LLE in Oman. \u0000 ","PeriodicalId":42526,"journal":{"name":"Journal of Reliability and Statistical Studies","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2019-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44323229","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

ESTIMATION OF POPULATION VARIANCE IN LOG – PRODUCT TYPE ESTIMATORS UNDER DOUBLE SAMPLING SCHEME 双抽样下对数乘积型估计量的总体方差估计

IF 0.8

Journal of Reliability and Statistical Studies Pub Date : 2019-10-10 DOI: 10.13052/jrss2229-5666.1222

Prabhakar Mishra, Rajesh Singh, S. Khare

引用次数: 1

FORECASTING OF AREA AND PRODUCTION OF CASHEW NUT IN DAKSHINA KANNADA USING ARIMA AND EXPONENTIAL SMOOTHING MODELS 利用ARIMA和指数平滑模型预测堪萨斯州腰果面积和产量

IF 0.8

Journal of Reliability and Statistical Studies Pub Date : 2019-09-30 DOI: 10.13052/jrss2229-5666.1226

M. Chaithra, Pramit Pandit, Bishvajit Bakshi

{"title":"FORECASTING OF AREA AND PRODUCTION OF CASHEW NUT IN DAKSHINA KANNADA USING ARIMA AND EXPONENTIAL SMOOTHING MODELS","authors":"M. Chaithra, Pramit Pandit, Bishvajit Bakshi","doi":"10.13052/jrss2229-5666.1226","DOIUrl":"https://doi.org/10.13052/jrss2229-5666.1226","url":null,"abstract":"The cultivation and marketing of cashew nut involve a considerable amount of work force. Hence, it plays a vital role in the Indian economic scenario. In this context, an attempt has been made to forecast the area and production of cashew nut with a view to help the planners in recommending policies regarding cashew nut. Due to autocorrelation in the data, time series forecasting models such as ARIMA and exponential smoothing models were adopted. Detection and removal of 3 significant outliers, i.e. 1 for area under cashew nut and 2 in case of cashew nut production, were done before fitting the models. Holt’s model was found to have better forecasting ability with lowest RMSE value (1386.13) among the different models fitted for forecasting the area under cashew nut. From this model, area (ha) under cashew nut was forecasted to be 34492.10, 34974.81 and 35474.87 for the year 2018, 2019 and 2020, respectively. In case of cashew nut production, Brown’s linear trend model, with RMSE value (10020.19), was observed to have better forecasting ability among the tried models. Production of cashew nut (in tonnes) was forecasted to be 10230.20, 10996.81 and 11833.00 for the year 2018, 2019 and 2020, respectively. \u0000 ","PeriodicalId":42526,"journal":{"name":"Journal of Reliability and Statistical Studies","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2019-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49054471","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

REGRESSION-IN-RATIO ESTIMATORS IN THE PRESENCE OF OUTLIERS BASED ON REDESCENDINGM-ESTIMATOR 基于重下降估计量的异常值存在下的比值回归估计量

IF 0.8

Journal of Reliability and Statistical Studies Pub Date : 2019-09-18 DOI: 10.13052/jrss2229-5666.1221

Aamir Raza, Muhmmad Noor-ul-Amin, M. Hanif

引用次数: 2