scholarly journals Diferentes análises estatísticas podem levar a conclusões categoricamente distintas

2021 ◽  
Author(s):  
Ronaldo Mangueira Lima Jr ◽  
Guilherme Duarte Garcia

[PORTUGUESE ABSTRACT] Neste estudo, demonstramos como significância estatística pode variar a partir da comparação de quatro métodos distintos: teste t, ANOVA (seguida de Tukey HSD), modelo linear simples, e modelo linear de efeitos mistos. Em nossa demonstração, modelamos tempos de reação em função de diferentes afixos em dinamarquês, e mostramos como nossas conclusões a respeito do efeito de certos afixos podem mudar categoricamente dependendo de qual dos métodos mencionados acima decidimos utilizar. Por fim, reiteramos o que dizem estudos recentes, e sugerimos que modelos de efeitos mistos devam ser a norma sempre que dados agrupados forem analisados. Esperamos, com este estudo, alertar pesquisadores da área para a importância de decisões analíticas bem informadas e éticas em estudos linguísticos.[ENGLISH ABSTRACT] In this study, we illustrate the potential variability of statistical significance by comparing four different methods, namely, t-test, ANOVA (followed by Tukey HSD), simple linear regression, and mixed effects linear regression. In our demonstration, we model reaction times as a function of different affixes in Danish, and show how our conclusions regarding the effect of certain affixes can change categorically depending on which of the aforementioned methods we choose to use. Finally, we echo recent studies and suggest that mixed effects models be the norm whenever grouped data is analyzed. With our comparison, we hope to raise researchers’ awareness to the need for well-informed and ethical analytical decisions in linguistic studies.

2019 ◽  
Vol 10 (9) ◽  
pp. 902-909
Author(s):  
Umbas Krisnanto ◽  
◽  
Conny Marpaung ◽  

This study aims to determine and analyze the influence of Service Quality and Customer Satisfaction on Customer Loyalty in Jabodetabek Commuter Line. The sample of this study was 50 people. Methods of collecting data by distributing questionnaires. Data analysis using the analysis used is simple linear regression, t test and coefficient of determination. The results showed 1) Service Quality has a positive and significant effect on Customer Loyalty in Jabodetabek Commuter Line, with a significance level of 0.048; and supported by the results of hypothesis testing with a t-count value of 4.433 > t-table value of 1.95, with a significance of 0.048 or < 0.05; 2) Customer Satisfaction positive and significant effect on Customer Loyalty in Jabodetabek Commuter Line, with a level significance of 0,000; and supported by the results of hypothesis testing with a t-count value of 4,969 > t-table value of 1.95, with a significance of 0,000 or < 0.05, 3) Service quality and Customer Satisfaction have a positive and significant effect on Customer Loyalty in Jabodetabek Commuter Line, with a significance level of 0,000. This means that the hypothesis H0 is rejected and Ha is accepted so that it can be concluded that service quality and customer satisfaction together have a positive and significant effect on customer loyalty in Jabodetabek Commuter Line.


2018 ◽  
Vol 1 (1) ◽  
pp. 91-103
Author(s):  
Ade Nurma jaya

This study aims to determine the effect of career development on the Retention of the State Civil Apparatus (ASN) in the Kerinci Regency Regional Secretariat, while the population and sample in this study were 68 employees. The analytical tool used in this study is a simple linear regression by conducting a regression test, the results of this study indicate that Career Development has a significant influence on the Retention of State Civil Apparatus. This is evidenced by the results of t-test where tcount> ttable (17,992> 1,677), while the amount of Career Development that is proven by Rsquare is 0.831 or (83.1%), while the remaining 16.9 %% is influenced by other variables


2020 ◽  
Vol 5 (1) ◽  
pp. 125
Author(s):  
Muhammad Emil ◽  
Suci Permata Sari

The population of this research is the organizational culture and employee performance of the sales department at PT. Agung Automall Paal 10 Jambi in 2019 an many as 53 people. Using a census that is all the population made responden. Based on the results of simple linear regression analysis, showing the equation Y = 0.844 + 0.682X + e. With a correlation of  44% or 0,440. The value of determination is 0,194 or 19,4%. Where it is intended that the influence of work culture on performance is 19,4% while 80,6% is influenced by other variables not examined in this study. T test value of 3.503 with a significance value of 0.00 <0.05 which is greater than the value of t table of 2.00758.


Author(s):  
Zariahwati Ajining Pambudi

<p><em>This research has a purpose to know the implementation of Service Quality, to know the Customer Satisfaction at PT. Bank Jateng KCP Cepu. </em><em>In this study population consists of 1.000 customer satisfaction with a sample of 286 using Incidental sampling technique. Data were taken by questionnaire, observation and documentation. The analysis was processed with SPSS program version 22.0 </em>using simple linear regression with test of hypothesis test of determination and t test. <em>The result of research shows that the result of Simple Linear Regression Test is Y = 9,311 + 0,763 X, constant of 9,311 means if variable of Service Quality is still value then Customer Satisfaction is 0,763 so there is influence between Service Quality to Customer Satisfaction. The result of Coefficient of Determination (</em> <em>) is known 0,400 means 40% Service Quality is influenced by Customer Satisfaction, while the rest 60% Service Quality is influenced by other variables not examined in this research. Then, the result of t test obtained </em> <em>value is 13,765 while  </em> <em> equal to 1,9683. This means that the value of</em><em> </em><em> </em> <em> &gt; </em> <em> (13,765&gt;1,9683) so it can be concluded that Ho is rejected and Ha accepted, meaning there is influence the Service Quality to Customer Satisfaction at </em><em>             </em><em>PT. Bank Jateng KCP Cepu.</em></p>


Author(s):  
Wiwin Sumaryati

This study aims to determine whether or not the effect of school facilities on student motivation in SMP N 1 Jiwan Academic Year 2011/2012. Determination of the sample in this study using a random sampling of the number of 48 students comprising the class 7A and 7B. The data collection method kueisioner. In analyzing the data using a simple linear regression, and to test whether the instrument is valid using the t test. The results indicate that school facilities have an influence on students’ motivation in the learning process in SMP N 1 Jiwan Year 2011/2012. It is obtained from the calculation of the t test showed that thitung (2.5)&gt; ttabel of 1.684 which was exhibited significantly at the level of 0.05 (5%), Ho is rejected which means that there was an effect of school facilities on student motivation in the learning process. Judging from the results of calculations using the t test derived regression equation Y = 26.717 + 0.346 X, which means that if the school facility experienced a 1% increase the motivation of students in the learning process has increased by 0.346%. It can be concluded that there was an effect of school facilities on student motivation in the learning process in SMP N 1 Jiwan Madison County Academic Year 2011/2012.


2012 ◽  
Vol 13 (2) ◽  
pp. 194 ◽  
Author(s):  
Heri Mujayin Kholik ◽  
Dimas Adji Krishna

Heri Mujayin Kholik DAN Dimas Adji KrishnaJurusan Teknik Industri Universitas Muhammadiyah MalangLaman: [email protected] mesin dan alat kerja yang mendukung proses produksi berpotensi menimbulkan suara kebisingan.Kebisingan adalah terjadinya bunyi yang tidak dikehendaki sehingga mengganggu atau membahayakan kesehatan.Penelitian ini bertujuan untuk menganalisa pengaruh tingkat kebisingan terhadap kinerja karyawan. Pengumpulan datadilakukan dengan cara ob�����������������������������������������������������servasi langsung dan kuesioner kepada pekerja di beberapa titik sampling. Pengolahan datamenggunakan uji t test untuk mengetahui tingkat kebisingan dan analisis regresi linier sederhana untuk mengetahuipengaruh tingkat kebisingan terhadap kinerja karyawan. Dari pengolahan data yang telah dilakukan dengan menggunakanuji t maka dapat ditarik kesimpulan bahwa level kebisingan di area kerja Power Plant II menunjukkan perbedaan yangsignifikan dengan Nilai Ambang Batas (NAB) yang telah ditetapkan oleh pemerintah, yaitu sebesar 98,599 dB. SedangkanNAB yang telah ditetapkan oleh pemerintah untuk area kerja (Industri) adalah sebesar 85 dB. Hasil analisis regresimenunjukkan �������������������������������������������������������������diperoleh t hitung sebesar 10,227 lebih besar dibandingkan t tabel sebesar 2,013. Nilai signifikansi jugasebesar 0 lebih kecil dibandingkan a sebesar 0,05������. Hasil ini menunjukkan bahwa kebisingan di area kerja Power Plant IIberpengaruh signifikan terhadap kinerja karyawan.Kata kunci: kebisingan, peralatan produksi�����������������������������������������, regresi linier sederhana,����������������� kinerja karyawanABSTRACTMachines and tools was used to support the production process have the potential effect to cause noise. Noise isthe unwanted sound that interfere and endanger health. This research aimed to analyze the effect of noise level on theperformance of the employees. Data collection was done by doing direct observation and questionnaires to workers in somesampling points. Processing data using the t test to determine noise level and simple linear regression to determine theeffect of noise level on employee performance. Conclusion from data processing it was known that the noise level in the workarea Power Plant II showed significant differences with the Threshold Limit Value (TLV) set by the government namely98.599dB (A), while TLV set by the government for the work area (Industry) is approximately 85 dB (A). Results of simplelinear regression analysis indicate that the value of t test was 10.227, this value was greater than t table namely 2.013. Valueof significant level is 0.000 less than a 0.05. These results indicate that the noise in the work area Power Plant II had asignificant impact on employee performance.Key words: noise, machine and work tool, simple linear regression, employee performance


2020 ◽  
Vol 6 (2) ◽  
pp. 80
Author(s):  
Eko Solihin ◽  
Sukardi Sukardi

This research aims to know and analyze the effect of application of control valve Cooler 1 Based On atmega 2560 microcontroller for Moisture feed after mixing with bagging off at PT. JAPFA comfeed Indonesia, Tbk. Unit Padang. The type of research used is the study of surveys with the analysis of data used i.e. simple linear regression analysis. Based on the results of the study, testing of normality obtained the significance value of 0.200 with normal categories and R square test results worth 29.4%. The results of simple linear regression test partially with T test, Mempertlihatkan that the application of the control valve Cooler 1-Base atmega 2560 microcontroller system significantly affects the after-mixing Moisture feed with bagging off. The interpretation is that each temperature reduction of the resulting control valve cooler 1 Microcontroller-Based atmega 2560 in one unit affects the difference of moisture feed after mixing with a bagging off of 2.425.


2020 ◽  
Vol 15 (2) ◽  
Author(s):  
Muhammad Rivandi ◽  
Gina Septiana

The effectiveness of cash flow is effective cash management requiring a control to protect cash from losses due to theft or fraud. The purpose of the study was to determine the effect of debt management on the effectiveness of cash flows at PT. Satria lestari Multi. The object in this study is PT. Satria lestari Multi. The number of samples in this study were 48 samples starting from January 2016 to December 2019. The statistical test used was using a simple linear regression test. Based on the partial t test with a significance value of 0,000 <alpha 0.05 it can be concluded that debt management has a positive and significant effect on the effectiveness of cash flows.  


2020 ◽  
Vol 4 (2) ◽  
pp. 80-101
Author(s):  
Muh Nur Rasyid ◽  
Mahmud Nuhung ◽  
Irwan Abdullah ◽  
Ayu Indah Pratiwi Hamzah

This study aims to analyze the influence of Relationship Marketing on increasing visitors to the Makassar Pioneer Harper Hotel. The type of research used in the study is simple linear regression. The population in this study were visitors to the Makassar Pioneer Harper Hotel in 2019, and the study sample totaled 99 respondents. The results of this study indicate that the variable relationship marketing can increase the number of visitors at the Makassar Pioneer Harper Hotel because relationship marketing is partially tested with the results of t test of 8,436 t table 1.98472 means that there is an influence between x and y and a significant value of 0,000 0,05 so that it can be said that there is an effect of variable relationship marketing on the variable increase in visitors.


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