scholarly journals Pemanfaatan Bioetanol Limbah Kelapa Muda dan Pengaruhnya Terhadap Emisi Sepeda Motor Empat Langkah Injeksi

2020 ◽  
Vol 1 (1) ◽  
pp. 1-8
Author(s):  
Sugiartono Sugiartono ◽  
Wagino Wagino ◽  
Darul Afdal ◽  
Retno Wahyudi
Keyword(s):  
Emission Reduction ◽  
Reduction Rate ◽  
Research Data ◽  
T Test ◽  
Primary Data ◽  
Test Results ◽  
Gas Analyzer ◽  
Additional Amount ◽  
Post Test ◽  
The Difference

This article discusses the use of Pertamax fuel and young coconut bioethanol with mixed variations (BE5, BE10, BE15, BE20) on injection step motorcycle exhaust emissions. The methodology used in this study is the post test only design control, one of the research in qualitative research. The research data is primary data, obtained directly on the gas analyzer during the trial. All data is then collected, looking for average test results, described and closed with a different test (t test). Based on the data obtained at the time of testing there was a decrease in CO and HC gas levels with each additional amount of young coconut ethanol in Pertamax fuel. The results of the difference analysis test (t test) are not significant, t arithmetic <t table which means accepted and rejected. Can reduce the use of young coconut bioethanol mixture has variations in CO and HC emission reduction, but the reduction rate is not significant Artikel ini bertujuan untuk membahas pengaruh penggunaan bahan bakar pertamax dan bioetanol kelapa muda dengan variasi campuran (BE5, BE10, BE15, BE20) terhadap emisi gas buang sepeda motor empat langkah injeksi. Metodologi yang digunakan dalam penelitian ini adalah post test only control desain, salah sau pendekatan riset dalam penelitian kualitatif. Data penelitian merupakan data primer, didapatkan secara langsung pada alat gas analizer pada saat uji emisi. Seluruh data kemudian dihimpun, di cari rata-rata hasil pengujian, di deskripsikan serta ditutup dengan uji beda (uji t). Berdasarkan data yang didapatkan pada saat pengujian terjadi penurunan kadar gas CO dan HC pada setiap peningkatan jumlah campuran bioetanol kelapa muda pada bahan bakar pertamax. Hasil dari analisis uji beda (t test) pengaruh penambahan campuran tidak signifikan, t hitung <  t tabel yang berarti Ho diterima dan Ha ditolak. Dapat disimpulkan penggunaan campuran bioetanol kelapa muda memiliki pengaruh penurunan kadar emisi gas CO dan HC, tetapi angka penurunan tidak signifikan.

scholarly journals Effect of Wallpass Exercise With Groups Of 4 Improving Passing Results Bali United Mataram

MAENPO ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 68
Author(s):  
Soemardiawan Soemardiawan ◽  
Nurdin Nurdin
Keyword(s):  
Research Design ◽  
Test Data ◽  
Research Data ◽  
T Test ◽  
Significant Difference ◽  
Post Test ◽  
The Mean ◽  
The Difference ◽  
Group 2 ◽  
Group 1

Football is a sport that is played outside the room of 11 players with the aim of getting the ball into the opponent's goal. The results of observations in the field that there are still many players in passing while competing so that it is not in accordance with the target. The formulation of the problem in this study is whether there is an effect of wallpass training and exercise with groups of 4 to increase the passing results of Bali United Mataram. The purpose of this research is to find out. The research design was a twogroup pretest-postest design. Population and sample are all players totaling 22 people. Instrument Passing for 30 seconds. The research data were analyzed using SPSS version 22. The results of the t-test for group 1 obtained significant values (2-tailed) <0.05: 0.003 <0.05 and group 2 significant values (2-tailed) <0.05: 0.038 <0,05. So these results indicate a significant difference. Based on the test for the difference in the mean post-test data for groups 1 and 2, it was obtained a significant value (2-tailed) <0.05: 0.026 <0.05 with an increase in the percentage value in group 1 of 12.93% and group 2 of 3, 96%. Based on the results of the analysis, it can be concluded that the effect of wallpass training and exercise with groups of 4 is an increase in the passing results of Bali United Mataram in 2021.Keywords: Passing, Wallpass, with groups of 4

scholarly journals EFEKTIFITAS PENGGUNAAN MEDIA PEMBELAJARAN E-LEARNING PADA MATA KULIAH QOWAIDULLUGHOH DI PRODI PAI FAI UHAMKA

2019 ◽  
Vol 10 (2) ◽  
pp. 85-96
Author(s):  
Fitriliza Fitriliza
Keyword(s):  
Experimental Study ◽  
Primary Data ◽  
Learning Material ◽  
Test Results ◽  
Post Test ◽  
E Learning ◽  
Study Population ◽  
The Difference

E-learning based learning media is technology based learning where learning material is presented in the form of audio visual such as video. This type of research is an experimental study to determine the effectiveness of learning media that is treated. The study population was all semester II PAI UHAMKA students in South Jakarta. The sample used in this study was taken randomly, namely the PAI classes A, B and C. The data collected included primary data. The results of this study were obtained from primary data. Primary data were obtained from pre-test and post-test results of students. There is an increase in the pre-test and post-test results in the experimental class and a decrease in the pre-test and post-test results in the control class. The average results obtained from the experimental class from 59.36 to 71.76 and in the control class from 72.82 to 70.64. The difference in mean results shows an increase in pre-test and post-test results and it can be concluded that the e-learning-based learning media is effectively used in learning.

scholarly journals Penerapan Model Pembelajaran Latihan Penelitian untuk Meningkatkan Penguasaan Konsep IPA Di SD 1 Gondoharum Kudus

Teknodika ◽  
2017 ◽  
Vol 15 (1) ◽  
pp. 70
Author(s):  
Yuni Ratnasari
Keyword(s):  
Descriptive Analysis ◽  
T Test ◽  
Average Score ◽  
Test Results ◽  
Science Concept ◽  
Significant Difference ◽  
Post Test ◽  
Science Concepts ◽  
The Difference ◽  
And Control

<p>This research aims to 1) determine the effects of the implementation of learning models of research exercises to increase mastery of Science concepts in Elementary School 1 Gondoharum Kudus. 2) knowing the effectiveness of research exercise models to enhance the mastery of Science concepts. The Research Exercise Model has five steps namely facing problems, finding and studying data, studying data and experimentation, formulating problems and stage analyzing. Mastery of Science concepts is the teacher's ability to overcome basic concepts of Science in the cognitive, affective and psychomotor areas. This study used a quasi<br />experiment one group pretest posttest research design completed with descriptive analysis. The subjects of this research are students of IVA and IVB SDN 1 Gondoharum Jekulo Kudus. Data collection techniques used test, observation, worksheet, and documentation data. Conceptmastery is obtained from pretest and posttest results. Pretest and posttest scores are analized with descriptive statistics including mean, median, standard of devisation, sknewness andpercentiles. Then, normality and homogeneity tests are performed as a requirement for the t-test using the paired sample t-test. The Success of this research is seen from the effect of application of Research Exercise Learning toward Mastery of Science Concept which is indicated by T-test results sig. (2-tailed) value of 0.35 &lt;0.05. From the result, it can be concluded that there is a significant difference on post student test data between experiment and control classes. The difference showed that mastery of the concept of experimental class is better than the control class. The  effectiveness of implementing Research Exercises Learning to Improve the mastery of the Science concept increased by 13.7 average score of pre test to post test.</p>

Retail Mix Dan Kepuasan Konsumen Minimarket

Liquidity ◽  
2018 ◽  
Vol 7 (1) ◽  
pp. 53-62
Author(s):  
Siti Maryama ◽  
Yayat Sujatna
Keyword(s):  
Consumer Satisfaction ◽  
Quantitative Method ◽  
Descriptive Analysis ◽  
T Test ◽  
Primary Data ◽  
Retail Industry ◽  
Location Data ◽  
Store Design ◽  
Customer Services ◽  
The Difference

The purpose of this study is to (1) analyzing the level of retail mix consumer satisfaction; (2) analyze the dominant variable in retail mix consumer satisfaction; (3) analyze the difference of retail mix consumer satisfaction performed. The observed of the retail industry is Alfamidi and Indomaret. The study was designed into a descriptive-quantitative method. The source of primary data obtained from the questionnaire of 100 respondents. The formulating variable of retail mix includes: merchandise assortments, pricing, customer services Store design and display, communication mix, and location. Data analyze by using descriptive, analysis of factors, and t-test. The result confirmed that the level of retail mix consumer satisfaction in both industry is relatively similar. However, it can be stated that the respondents were more satisfied to Indomaret compared with Alfamart.

THE EFFECT OF ONLINE VIDEO BLOG ON STUDENTS’ ACHIEVEMENT OF PASSIVE VOICE IN 4J OPERATION KENDARI

2020 ◽  
Vol 5 (2) ◽  
pp. 125
Author(s):  
Raden Alifian Setiawan ◽  
Hanna Hanna ◽  
Alberth Alberth
Keyword(s):  
Data Analysis ◽  
Real World ◽  
T Test ◽  
Test Design ◽  
Online Video ◽  
Test Results ◽  
Multiple Choice Questions ◽  
Passive Voice ◽  
Paired Sample ◽  
Post Test

The use of videos in education makes it possible to overcome practical real-world constraints and explore far greater possibilities provided by digital spaces, especially for the video uploaded in online platform such as blog. This study examines whether online video blog as media have a significant effect on students’ achievement of passive voice. It used pre-experimental (one group pre-test and post-test) design. The samples of this study were 10 students at 4J Operation. A pre-test and post-test were conducted by using multiple choice questions as the instruments. Data analysis was through paired-sample t-test. Results showed that there was an increase in mean score of pre-test (49,1) and post-test (63,5). Data from Paired Sample t-test showed that Sig. (2-tailed) was 0.000 which was smaller than .05 which means that there was significance difference in mean score after employing treatment.

scholarly journals Online Affirmation and Peer Support are Effective for Reducing Medical Personnel Stress in Dealing with Covid-19 Patients

2021 ◽  
Vol 10 (2) ◽  
pp. 151-161
Author(s):  
Nurmukaromatis Saleha ◽  
Rina Delfina ◽  
Nurlaili Nurlaili ◽  
Fourni Ardiansyah ◽  
Mercy Nafratilova
Keyword(s):  
Social Support ◽  
Peer Support ◽  
Stress Level ◽  
Intervention Group ◽  
Management Training ◽  
Medical Personnel ◽  
T Test ◽  
Test Results ◽  
Stress Management Training ◽  
Post Test

The Covid-19 outbreak has psychological impacts on frontline medical personnel at risk of infection. Therefore, this study aimed to evaluate the effect of online affirmations and peer support on medical personnel stress level in dealing with Covid-19 patients, as well as social support and spiritual intelligence's influence. It was a quasi-experiment with pre- and post-test administered to 25 and 30 medical personnel as the intervention and control groups, respectively. The intervention was carried out on WhatsApp group for 4 weeks. The stress level pair T-test results showed p = 0.000 in the intervention group and p = 0.238 in the control, while the independent T-test results showed p = 0.009. Social support did not affect medical personnel’s stress (p=0.978), but the effect of spiritual intelligence was significant (p=0.000). According to the results of multiple regression test conducted using the Enter method, the coefficient value (R2) = 0.584. This intervention was effective in helping medical personnel to manage stress. Hence, hospital managers need to carry out stress management training to maintain medical personnel’s mental health.

scholarly journals PENGARUH PELATIHAN THREE CORNER DRILL TERHADAP PENINGKATAN KELINCAHAN DAN POWER

2018 ◽  
Vol 6 (3) ◽  
Author(s):  
I Gede Agunk Teddy Pratama ◽  
Made Budiawan ◽  
I Nyoman Sudarmada
Keyword(s):  
Treatment Group ◽  
Muscle Power ◽  
T Test ◽  
Training Effect ◽  
Control Group ◽  
Test Results ◽  
Control Group Design ◽  
Group Design ◽  
Post Test ◽  
Quasi Experimental

Penelitian ini bertujuan untuk mengetahui pengaruh pelatihan three corner drill terhadap kelincahan dan power otot tungkai. Jenis penelitian adalah quasi experimental dengan rancangan the non-randomized pretest-posttest control group design. Subjek penelitian yang digunakan siswa putra peserta ektrakurikuler sepak bola SMPN 2 Pekutatan. Data post-test kelincahan dan power otot tungkai pada kelompok perlakuan dan kelompok kontrol dianalisis dengan uji-t independent pada taraf signifikansi (α) 0,05 dengan bantuan program SPSS 16.0. Berdasarkan hasil uji-t independent didapatkan hasil : (1) untuk variabel kelincahan, hasil perbandingan kelompok perlakuan dan kontrol didapatkan nilai thitung = -2,948 , dengan nilai signifikansi 0,009, (2) untuk variabel power, hasil perbandingan kelompok perlakuan dan kontrol didapatkan nilai thitung = 3,176, dengan nilai signifikansi 0,005. Nilai signifikansi hitung lebih kecil dari nilai α (Sig < 0,05), dengan demikian hipotesis penelitian “pelatihan three corner drill berpengaruh terhadap peningkatan kelincahan dan power otot tungkai pada siswa putra peserta ektrakurikuler sepak bola SMPN 2 Pekutatan” diterima. Dari hasil analisis data dan pembahasan disimpulkan bahwa : (1) Pelatihan three corner drill berpengaruh terhadap peningkatan kelincahan pada siswa putra peserta ektrakurikuler sepak bola SMP Negeri 2 Pekutatan (2) Pelatihan three corner drill berpengaruh terhadap peningkatan power otot tungkai pada siswa putra peserta ektrakurikuler sepak bola SMP Negeri 2 Pekutatan. Kata Kunci : kelincahan, daya ledak, three corner drill The purpose of this research was to find out the effect of three corner drill training toward the increased agility and power muscle of legs. The type of research was a quasi-experimental and the design of research was the non-randomized pretest-posttest control group design. The subjects were man’s student football extracurricular participants of SMPN 2 Pekutatan. Agility and muscle power of legs posttest to the treatment group and the control group were analyzed by independent t-test at significance 0,05 with SPSS 16.0. Based on independent t-test results were showed : (1) to the agility variable, the comparison of the treatment and the control group values obtained t = -2,948, with a significance value of 0,009, (2) to muscle power of legs variable, the comparison of the treatment and the control group values obtained t = 3,176, with a significance value of 0,005. Calculated significance value smaller than the value of 0,05 (Sig < 0.05), thus the research hypothesis "three corner drill training affect the increased agility and muscle power of legs in football extracurricular participants of SMPN 2 Pekutatan " was received. From the analyzed and discussion were concluded that : (1) three corner drill training effect the increased agility in football extracurricular participants of SMPN 2 Pekutatan, (2) three corner drill training effect the increased muscle power of legs in football extracurricular participants of SMPN 2 Pekutatan. keyword : Agility, power, three corner drill

scholarly journals Pengaruh Kualitas Pelayanan Terhadap Kepuasan Pelanggan PT. Langit Membiru Wisata Bogor

PARAMETER ◽  
2021 ◽  
Vol 6 (1) ◽  
pp. 38-49
Author(s):  
Rini Ardista
Keyword(s):  
Customer Satisfaction ◽  
Service Quality ◽  
T Test ◽  
Primary Data ◽  
Test Results ◽  
A Value ◽  
Primary Data Source ◽  
Data Source

This research aims to determine and analyze the effect of service quality on customer satisfaction of PT. Langit Membiru Wisata Bogor, to find out how big the influence and relationship between service quality and customer satisfaction. The sample used was 100 respondents taken through t-test or interviews, observations, and questionnaires at PT. Langit Membiru Wisata Bogor and the primary data source processed with SPSS 25. The t-test results show the effect of service quality on customer satisfaction, this is evidenced by the variable (X) service quality and variable (Y) customer satisfaction has a value less than 0.05, namely (0.00 <0.05), this is proven with the value in the t test obtained t count 91.624> t table 5.293, so it can be concluded that the hypothesis can be accepted. Abstrak Penelitian ini bertujuan untuk mengetahui dan menganalisis pengaruh kualitas pelayanan terhadap kepuasan pelanggan PT. Langit Membiru Wisata Bogor, untuk mengetahui seberapa besar pengaruh dan hubungan antara kualitas pelayanan dengan kepuasan pelanggan. Sampel yang digunakan adalah 100 responden yang diambil melalui uji-t atau wawancara, observasi, dan angket pada PT. Langit Membiru Wisata Bogor dan sumber data primer diolah dengan SPSS 25. Hasil uji t menunjukkan adanya pengaruh kualitas pelayanan terhadap kepuasan pelanggan, hal ini dibuktikan dengan variabel (X) kualitas pelayanan dan variabel (Y) kepuasan pelanggan memiliki nilai lebih kecil dari 0,05 yaitu (0,00 < 0,05) hal ini terbukti dengan nilai pada uji t diperoleh t hitung 91,624 > ttabel 5,293, sehingga dapat disimpulkan bahwa hipotesis dapat diterima.

scholarly journals Video Based Instructions Meningkatkan Praktik Kebersihan Diri Saat Menstruasi Pada Siswi Disabilitas Intelektual

2020 ◽  
Vol 5 (2) ◽  
pp. 62-70
Author(s):  
Endang Sri Wahyuni ◽  
Wa Ode Diana Harisa
Keyword(s):  
Intellectual Disability ◽  
Sampling Technique ◽  
Total Sample ◽  
T Test ◽  
Personal Hygiene ◽  
Test Results ◽  
Paired Sample ◽  
Post Test ◽  
The Mean ◽  
Based Instruction

Backgrounds: Intellectual Disability students must be able to master the practice of personal hygiene during menstruation skills. However, to teach this skill to them is not easy. They need certain methods to learn these skills to get effective results. Video-Based Instruction is one method to teach these skills. This study aims to determine whether there is an effect of Video-Based Instruction on the practice of personal hygiene during menstruation on Intellectual Disability students. Methods: This is quantitative research with pre-experimental type and one group pretest-posttest design. The data collection tool is a "personal hygiene" questionnaire. The data analysis method uses a paired sample t-test with the help of SPSS version 25. This research conducted at SLB Negeri 3 Central Jakarta with a total sample is 20 respondents selected by the purposive sampling technique. Results: Most respondents were 14 years old (20%), 7th grade (30%), get menarche at 12 and 13 years (25%). The mean score for the practice of personal hygiene during menstruation pre-test is 41.30 and post-test is 53.20. Paired sample t-test results showed that sig. (2-tailed) <0.001. Conclusion: The results showed that it received Ha, which means that there is an effect of Video-Based Instruction on the practice of personal hygiene during menstruation on Intellectual Disabilities students. The results also showed that there are mean score differences of the pre-test and post-test results, which is an increase in the mean score of the post-test results by 11,90.

Pengaruh Kualitas Layanan Dan Harga Terhadap Kepuasan Pelanggan Pada Rental Mobil Baraya Purwakarta

2021 ◽  
Vol 2 (1) ◽  
pp. 27-35
Author(s):  
Dinda Amalia
Keyword(s):  
Customer Satisfaction ◽  
Service Quality ◽  
Research Data ◽  
T Test ◽  
Test Reliability ◽  
Test Results ◽  
Analysis Method ◽  
Simultaneous Test ◽  
Car Rental ◽  
Research Findings

This study aims to determine the effect of service quality and price on customer satisfaction of Baraya Purwakarta car rental. Sources of data in this study were obtained from questionnaires (primary) which were distributed to respondents. The population of this research is the car rental customer Baraya Purwakarta. The sample in this study amounted to 70 people. The research data analysis method used was validity test, reliability test, classical assumption test, multiple linear regression, and hypothesis testing, namely the f test and t test. The research findings show that the variable of service quality and price affects the customer satisfaction variable which has an R Square value of 0.502 or 50.2% and the remaining 49.8% is influenced by other variables. From the simultaneous test results, service quality and price have an effect on customer satisfaction as evidenced by the results of the Fcount value greater than Ftable of 34.576 and sig 0,000. From the results of the t test, service quality has a partial effect on customer satisfaction with a tcount of 3,965 and price has an effect on customer satisfaction with a tcount of 5,177.

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