Development of regression model to differentiate quality of black tea (Dianhong): correlate aroma properties with instrumental data using multiple linear regression analysis

2012 ◽  
Vol 47 (11) ◽  
pp. 2372-2379 ◽  
Author(s):  
Xueli Pang ◽  
Zihan Qin ◽  
Lei Zhao ◽  
Huan Cheng ◽  
Xiaosong Hu ◽  
...  
2017 ◽  
Vol 3 (2) ◽  
pp. 182-195
Author(s):  
Loli Efendi ◽  
Darwanis Darwanis ◽  
Syukriy Abdullah

This study aims to examine the effect of the quality of regional apparatus, the utilization of information technology, and the supervision of regional finance on the quality of local financial reporting at the Regional Working Units in the Central Aceh Regency. The population of this study is all and agencies in the Central Aceh District. A total of 28 Regional Working Units, consisting of 3 officers (i.e., Head of the Office or the Budget User, Head of Accounting Department, and accounting staff) were selected as the respondents of the study. The data are gathered using the questionnaires and analysed using the Multiple Linear Regression Analysis. The results showed that the quality of the regional apparatus, the utilization of information technology, and the supervision of regional finance significantly affected the quality of local financial reporting at the Regional Working Units in the Central Aceh Regency. This findings implied that in order to improve the quality of local financial reporting, the policy makers should focus on ensuring the quality of regional apparatus, the utilization of information technology, and the supervision of regional financial management.Penelitian ini bertujuan untuk menguji pengaruh kualitas aparatur daerah, pemanfaatan teknologi informasi, dan pengawasan keuangan daerah baik secara bersama-sama maupun secara parsial terhadap kualitas pelaporan keuangan daerah pada Satuan Kerja Perangkat Daerah di Kabupaten Aceh Tengah. Populasi dalam penelitian ini adalah seluruh institusi/lembaga yang meliputi kantor, dinas dan badan pada Kabupaten Aceh Tengah. Sebanyak 28 SKPK (Satuan Kerja Perangkat Kabupaten) dan untuk masing-masing SKPK terdiri dari 3 orang yang terdiri dari kepala SKPK atau Pengguna Anggaran, kepala bagian akuntansi dan staf bagian akuntansi sebagai responden penelitian. Data dalam penelitian dikumpulkan melalui penyebaran kuesioner kepada responden dan kemudian dianalisis dengan menggunakan Regresi Linear Berganda. Hasil penelitian menunjukkan bahwa kualitas aparatur daerah, pemanfaatan teknologi informasi, dan pengawasan keuangan daerah baik secara bersama-sama maupun secara terpisah berpengaruh terhadap kualitas pelaporan keuangan daerah pada Satuan Kerja Perangkat Daerah di Kabupaten Aceh Tengah. Temuan ini menyiratkan bahwa untuk meningkatkan kualitas pelaporan keuangan daerah, pembuat kebijakan harus fokus untuk memastikan kualitas aparatur daerah, pemanfaatan teknologi informasi, dan pengawasan pengelolaan keuangan daerah.


2018 ◽  
Vol 192 ◽  
pp. 02007
Author(s):  
Phiraphat Aphiphan ◽  
Uma Seeboonruang ◽  
Somyot Kaitwanidvilai

Groundwater salinity is a major problem particularly in the northeastern region of Thailand. Saline groundwater can cause widespread saline soil problem resulting in reducing agricultural productivity as in the Lower Nam Kam River Basin. In order to better manage the salinity problem, it is important to be able to predict the groundwater salinity. The objective of this research was to create a cluster-regression model for predicting the groundwater salinity. The indicator of groundwater salinity in this study was electrical conductivity because it was simple to measure in field. Ninety-eight parameters were measured including precipitation, surface water levels, groundwater levels and electrical conductivity. In this study, the highest groundwater salinity at 3 wells was predicted using the combined cluster and multiple linear regression analysis. Cross correlation and cluster analysis were applied in order to reduce the number of parameters to effectively predict the quality. After the parameter selection, multiple linear regression was applied and the modeling results obtained were R2 of 0.888, 0.918, and 0.692, respectively. This linear regression model technique can be applied elsewhere in the similar situation.


2019 ◽  
Vol 7 (2) ◽  
pp. 87-100
Author(s):  
Tri Wulanjayanti ◽  
Darman Usman

This study aims to test the effect of service quality of electronic taxing system and tax employee competence on taxpayer satisfaction. The variables on this study was measured by using questionnaire. The sample of this study is personal Taxpayer who is running business activities and is registered at the Primary Tax Office of Bengkulu. The data used in this study is primary data. The hypothesis of the study is tested by using Multiple Linear Regression Analysis with the assistance of SPSS. The result of this study revealed that the service quality of electronic taxing system and tax employee competence had positive effect on the taxpayer satisfaction.Key Words: Service Quality of Electronic Taxing System, Tax Employee Competence, and Taxpayer Satisfaction.


Author(s):  
Hantono

This study aims to determine the effect of 1) demand, 2) supply, 3) labor, 4) covid 19. The sampling in this research was conducted by using a incidental sampling method. Methods of data collection through questionnaires that have been distributed to 100 respondents who have met criteria. With multiple linear regression analysis, it shows that the demand, supply, labor both partial and simultaneous have significant effect on covid 19. It can be concluded that mitigation of demand, supply, labor towards covid 19. The results of t test showed that demand is approved and indicates demand has great impact on affecting the covid 19, supply is not approved and indicates supply has less impact on affecting the covid 19, labor is approved and indicates labor has great impact on affecting the covid 19. The results of f test showed that both of the independent variables are simultaneously affecting the covid 19. The result of R Square of the regression model is 0.216 which shows that 21,6 % of mitigation of covid 19 can be explained by demand, supply, labor. Whereas, the 78,4% of covid 19 variable can be explained by other factors or variables which are not examined in this research.


2021 ◽  
Vol 12 ◽  
Author(s):  
Jie Wang ◽  
Qin Wang ◽  
Zhipeng Bao ◽  
Yuanyuan Peng ◽  
Shenxinyu Liu ◽  
...  

Objective: This study aims to explore the influence of patient activation (PA) and relational aspects on the quality of life (QoL) in patients with Atrial Fibrillation (AF) for developing measures to improve PA and QoL.Methods: A cross-sectional study was undertaken in 2021 among 190 AF patients in Nanjing, China. Research instruments included a self-designed social-demographic characteristics scale, the Patient Activation Measure (PAM), the Atrial Fibrillation Effect on Quality of Life (AFEQT). The data analysis was performed using IBM SPSS 25.0. Spearman correlation analysis, multiple linear regression analysis, and Wilcoxon rank-sum tests were used to assess the association accordingly.Results: The average AFEQT score for the 190 AF patients was 69.32 ± 14.52. The distribution of activation Levels 1, 2, 3, and 4, were where 4.7, 34.2, 47.4, and 13.7%, respectively. The multiple linear regression analysis revealed that patient activation, work status, and cardiac rehabilitation of AF patients predicted AF-related QoL (β = 0.270, −0.205, and 0.183, respectively; all P < 0.05). The influences of PA level on subdimensions of AF-related QoL were as follows: symptoms, daily activities and treatment concern.Conclusion: The level of QoL of patients with AF was moderate. Higher levels of patient activation in those with AF were associated with milder symptoms, more positive daily activities and fewer treatment concern. Based on our findings, we suggest that healthcare personnel should encourage AF patients to take active participation in cardiac rehabilitation, disease self-management and foster progression of PA level. Future research is warranted to develop tailor-made interventions aimed at the activation level.


2021 ◽  
Vol 4 (2) ◽  
pp. 557-564
Author(s):  
Cindy Marceline ◽  
Demak Claudia Yosephine Simanjuntak ◽  
Claudia Lorenza ◽  
Albert Albert

The importance of Human Resources needs to be realized by every level of management in the company, in order to improve the company's development. This research was conducted by researchers with the aim of testing and analyzing the influence of communication, leadership and incentives on employee performance at PT. Jaya Anugrah Sukses Abadi. In this study, the method used in this study is multiple linear regression analysis. Where the total population amounted to 176 consumers and the number of samples in this study amounted to 122 consumers. From the results of this study conducted by researchers, it was found that partially and simultaneously the quality of communication, leadership and incentives had a positive and significant effect on employee performance at PT. Jaya Anugrah Sukses Abadi. The coefficient of determination is 0.653 which means 65.3% of employee performance which can be explained by communication, leadership and incentives, while the remaining 34.7% is explained by other variables not examined in this study. Keywords: Incentives; Leadership; Employee performance; Communication.


2018 ◽  
Vol 14 (1) ◽  
Author(s):  
Polii Cimberly ◽  
Hendrik Manossoh ◽  
Heince R. N. Wokas

This research aims to examine the effect of tax knowledge and the quality of tax service on motivation in paying income tax. The sample in this research are all individual taxpayers who reside in the district wanea of manado city. The data in this research is using primary data. It was collected by distributing questionnaires directly to individual taxpayers in the district wanea of manado city. The data taken was processed using the multiple linear regression analysis with the help of  SPSS 23. The result indicate that: tax knowledge has positive effect towards motivation in paying income tax. The quality of tax service has positive effect towards motivation in paying income tax. Tax knowledge and the quality of tax service simultaneously have positive effect towards motivation in paying income tax.Keywords: Tax Knowledge, The Quality of Tax Service, Motivation In Paying Income Tax.


2020 ◽  
Vol 2 (1) ◽  
pp. 46-58
Author(s):  
Ni Wayan Ari Sudiartini ◽  
Ni Ketut Murdani ◽  
Ni Kadek Candra Dewi

This research aims to find out how the influence of service quality and customer satisfaction to desire to shop at Coco Mart Tabanan. The data used in this research is quantitative data and then processed using multiple linear regression analysis. Population in this research were consumers who made purchases in Coco Mart Tabanan, with a sample of 60 people.Test results of multiple linear regression analysis obtained equation Y = - 0,465 + 0,236X1+ 0,289X2,  which means the quality of service variables (X1) and customer satisfaction (X2) have a significant positive effect on the desire to shop (Y). The correlation test results show that the correlation coefficient of = 0,889 lies between 0,80-1,00 which means that the effect between service quality  (X1) and customer satisfaction (X2) with shopping desire (Y) is very strong. Determination test results, adjusted amount of R2 is 0,790 this means the influence of service quality and customer satisfaction to the desire to shop for 79,0% while the remaining 21,0% influenced by other factors not examined. The results of the f test and t test show that the hypothesis which reads “ there is a significant influence between service quality (X1) and customer satisfaction (X2) on shopping desire (Y) “ can be received by testing significant level 0,000 is smaller than 0,05. 


2020 ◽  
Vol 12 (2) ◽  
pp. 105-113
Author(s):  
Besti Lilyana

Damri Lampung Public Company is a company located on Jalan Captain Abdul Haq No.  28, Bandar Lampung which was established as a Public Transportation Bus company within the City and between Cities or Provinces.  In Damri Lampung Public Company, several problems occur including: lack of motivation, personal character problems, self-concept problems, lack of knowledge and skills.  The aim of this research is to determine the effect of Competency and Work experience simultaneously and partially on the Quality of HR. With a total of 118 respondents, this research uses multiple linear regression analysis methods. To determine the effect of the independent variable partially on the dependent variable, the t test is used.  Whereas to determine the effect of the dependent variable simultaneously, the F-test is used. The analysis technique uses SPSS 16.0.  The results of multiple linear regression analysis show that the t-count is 1.768 while the F-test show a value of 105.349 with the R square value in this research is 0.647 or 64.7%.  The results of this research indicate that competency and work experience have a significant effect on the quality of human resources. Keywords: Competencies, Work Experience, Human Resources Quality   Perusahaan Umum Damri Lampung merupakan perusahaan yang berlokasi di jalan Kapten Abdul Haq No. 28, Bandar Lampung  didirikan sebagai  perusahaan  Bus Angkutan Umum dalam Kota dan antar Kota atau Provinsi. Di Perusahaan Umum Damri Lampung terjadi beberapa permasalahan diantaranya: motivasi yang kurang, masalah karakter pribadi, masalah konsep diri, minimnya pengetahuan dan keterampilan yang kurang. Tujuan penelitian ini adalah untuk mengetahui pengaruh Kompetensi dan Pengalaman kerja secara simultan dan parsial terhadap Kualitas SDM. Dengan jumlah responden sebanyak 118 orang karyawan. Penelitian ini menggunakan metode analisis regresi linier berganda. Untuk mengetahui pengaruh variabel independen terhadap variabel dependen secara parsial, digunakan uji t. Sedangkan untuk mengetahui pengaruh variabel dependen secara simultan, digunakan uji-F. Analisis menggunakan SPSS 16.0,. Hasil analisis regresi linier berganda diperoleh bahwa t-hitung adalah 1,768 sedangkan uji-F diperoleh nilai sebesar 105,349 dengan nilai R square pada penelitian ini adalah 0,647 atau 64,7 %. Hasil penelitian ini menunjukkan bahwa Kompetensi dan Pengalaman kerja berpengaruh signifikan terhadap Kualitas SDM. Kata kunci: Kompetensi, Pengalaman Kerja, Kualitas SDM


Author(s):  
Pierre Patarianto

<span><em>This study aimed to analyze the quality of service on customer satisfaction in </em><span><em>PT. Bank Mandiri (Persero) Tbk. Sidoarjo branch Gedangan, the variables used in this </em><span><em>study was the quality of service consisting of Reability, responsiveness, assurance, </em><span><em>empathy, and tangible as well as the level of customer satisfaction. This study was </em><span><em>conducted to spread out questionnaires to 72 customers in the bank branch Gedangan </em><span><em>Sidoarjo. To see the effect of service quality on customer satisfaction conducted </em><span><em>sampling of respondents involved in the sampling process. Test equipment used is the </em><span><em>technique of multiple linear regression analysis with SPSS 17.0 software. From the  </em><span><em>results of multiple regression analysis in F test obtained Fhitung 22 285&gt; of F Table of </em><span><em>2346 or by the significant value of 0000 in which the significance value is less than the </em><span><em>significance level = 0.05. it can be concluded that Ho refused and Ha accepted, it </em><span><em>means reliability (X</em><span><em>1</em><span><em>), responsiveness (X</em><span><em>2</em><span><em>) assurance (X</em><span><em>3</em><span><em>), empathy (X</em><span><em>4</em><span><em>), and tangible </em><span><em>(X</em><span><em>5</em><span><em>) together have a significant impact on customer satisfaction (Y) , T test to determine </em><span><em>the effect obtained partial realibility of 2611; variable responsiveness of 2155; variable </em><span><em>assurance amounted to 2,383; emphaty variables for 4328; tangible variables for 2219. </em><span><em>whose value is greater than ttable which amounted to 1,997, which means stating that </em><span><em>the variable stress reliability (X</em><span><em>1</em><span><em>), responsiveness (X</em><span><em>2</em><span><em>), assurance (X</em><span><em>3</em><span><em>), empathy (X</em><span><em>4</em><span><em>), </em><span><em>and tangible (X</em><span><em>5</em><span><em>), individually (partial) influence to variable customer satisfaction. </em></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span><br /></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span>


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