A two-stage group acceptance sampling plan based on life tests for half logistic distribution

2016 ◽  
Vol 11 (3) ◽  
pp. 203-211 ◽  
Author(s):  
B. Srinivasa Rao ◽  
G. Srinivasa Rao
Keyword(s):  
Sampling Plan ◽  
Logistic Distribution ◽  
Acceptance Sampling ◽  
Two Stage ◽  
Acceptance Sampling Plan ◽  
Life Tests ◽  
Group Acceptance

scholarly journals A Two-stage Group Sampling Plan Based on Truncated Life Tests for an Odd Generalized Exponential Log-logistic Distribution

2019 ◽  
pp. 1-14
Author(s):  
D. C. U. Sivakumar ◽  
G. Srinivasa Rao ◽  
K. Rosaiah ◽  
K. Kalyani
Keyword(s):  
Group Size ◽  
Sampling Plan ◽  
Logistic Distribution ◽  
Acceptance Sampling ◽  
Two Stage ◽  
Sample Number ◽  
Average Sample Number ◽  
Acceptance Sampling Plan ◽  
Group Acceptance ◽  
Average Sample

In this article, a time truncated life test based on two-stage group acceptance sampling plan is proposed for lifetime of an item follows odd generalized exponential log-logistic distribution (OGELLD). The ability about the lot acceptance can be made in the first or second stage according to the number of failures from each group. The optimal parameters for the proposed plan are determined such that both producer’s as well as consumer’s risks are contented simultaneously for the specified unreliability when group size and test duration are specified. The efficiency of the proposed sampling plan is evaluated in terms of average sample number with the existing sampling plan. The results are explained with the help of industrial example.  Using exploratory data analysis and then goodness-of-fit, we show a rough indication of the goodness of fit for our model by plotting the superimposed for the data shows that the OGELLD is a good fit and also it is emphasized with Q-Q plot, displayed in Fig. 1. We observed from the tables / results that the number of groups required decrease as the group size increases from  and also the ASN increases marginally, sample size decreases as the group size increases, which indicates that a larger group size may be more economical and it reduces the experimental time and cost. We proposed two-stage group acceptance sampling plan, since it performs much better in terms of the average sample number (ASN) and the operating characteristics than in single-stage group acceptance sampling plan. The advantage of two stage group sampling plan is that it reduces the average sample number (ASN) as compared to the GASP.

Group acceptance sampling plan for resubmitted lots based on life tests for odds exponential log logistic distribution

2017 ◽  
Vol 34 (8) ◽  
pp. 1343-1351 ◽  
Author(s):  
Rosaiah K. ◽  
Srinivasa Rao Gadde ◽  
Kalyani K. ◽  
Sivakumar D.C.U.
Keyword(s):  
Group Size ◽  
Sampling Plan ◽  
Logistic Distribution ◽  
Acceptance Sampling ◽  
Consumer’S Risk ◽  
Content Type ◽  
Acceptance Sampling Plan ◽  
Minimum Group ◽  
Termination Time ◽  
Group Acceptance

Purpose The purpose of this paper is to develop a group acceptance sampling plan (GASP) for a resubmitted lot when the lifetime of a product follows odds exponential log logistic distribution introduced by Rao and Rao (2014). The parameters of the proposed plan such as minimum group size and acceptance number are determined for a pre-specified consumer’s risk, number of testers and the test termination time. The authors compare the proposed plan with the ordinary GASP, and the results are illustrated with live data example. Design/methodology/approach The parameters of the proposed plan such as minimum group size and acceptance number are determined for a pre-specified consumer’s risk, number of testers and the test termination time. Findings The authors determined the group size and acceptance number. Research limitations/implications No specific limitations. Practical implications This methodology can be applicable in industry to study quality control. Social implications This methodology can be applicable in health study. Originality/value The parameters of the proposed plan such as minimum group size and acceptance number are determined for a pre-specified consumer’s risk, number of testers and the test termination time.

scholarly journals THE ODD GENERALIZED EXPONENTIAL LOG-LOGISTIC DISTRIBUTION GROUP ACCEPTANCE SAMPLING PLAN

2019 ◽  
Vol 20 (1) ◽  
pp. 103-116
Author(s):  
Devireddy Charana Udaya Sivakumar ◽  
Rosaiah Kanaparthi ◽  
Gadde Srinivasa Rao ◽  
Kruthiventi Kalyani
Keyword(s):  
Sampling Plan ◽  
Logistic Distribution ◽  
Acceptance Sampling ◽  
Acceptance Sampling Plan ◽  
Group Acceptance

Two-Stage Group Acceptance Sampling Plan for Burr Type X Percentiles

2013 ◽  
Vol 41 (4) ◽  
pp. 20120209 ◽  
Author(s):  
Muhammad Aslam ◽  
Muhammad Azam ◽  
Y. L. Lio ◽  
Chi-Hyuck Jun
Keyword(s):  
Sampling Plan ◽  
Acceptance Sampling ◽  
Two Stage ◽  
Acceptance Sampling Plan ◽  
Group Acceptance

scholarly journals Group Acceptance Sampling Plans for Resubmitted Lots UnderType II Generalized Half Logistic Distribution

2020 ◽  
Vol 12 (3) ◽  
pp. 311-325
Author(s):  
G. S. Rao ◽  
S. Jilani ◽  
A. V. Rao
Keyword(s):  
Sampling Plan ◽  
Design Parameters ◽  
Logistic Distribution ◽  
Acceptance Sampling ◽  
Data Set ◽  
Research Article ◽  
Acceptance Sampling Plan ◽  
Acceptance Sampling Plans ◽  
Termination Time ◽  
Group Acceptance

In this research article, we build-up a group acceptance sampling plan (GASP) for a resubmitting lot when the lifetime of a product follow the  Type II Generalized half-logistic distribution (GHLD).  The design parameters of the group acceptance sampling plan for the resubmitted are determined by fixing the experiment termination time and the numbers of testers at the stated producer’s and consumer’s risks both satisfy at the same time. We contrast the proposed GASP with the ordinary group sampling plan and the results are demonstrated with a live data set.  

scholarly journals Two stage group acceptance sampling plan for half normal percentiles

2015 ◽  
Vol 27 (3) ◽  
pp. 239-243 ◽  
Author(s):  
Muhammad Azam ◽  
Muhammad Aslam ◽  
Saminathan Balamurali ◽  
Affifa Javaid
Keyword(s):  
Sampling Plan ◽  
Acceptance Sampling ◽  
Two Stage ◽  
Acceptance Sampling Plan ◽  
Group Acceptance
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