scholarly journals Analisis Pengaruh Merger dan Akuisisi terhadap Kinerja Keuangan dan Abnormal Return pada Perusahaan di Bursa Efek Indonesia Tahun 2014-2018

2021 ◽  
Vol 5 (1) ◽  
pp. 34
Author(s):  
Sylvi Liani Dewi ◽  
Indra Widjaja
Keyword(s):  
Abnormal Return ◽  
Abnormal Returns ◽  
Merger And Acquisition ◽  
T Test ◽  
Rank Test ◽  
Paired Sample ◽  
Signed Rank ◽  
Wilcoxon Signed Rank Test ◽  
Before And After ◽  
Signed Rank Test

This study aims to examine the difference in firm performances and abnormal returns before and after the merger and acquisition in the companies listed on the Indonesian Stock Exchange in the year 2014 to 2018. The data observation period is 1 year before the merger dan acquisition and 2 years after merger and acquisition. The analysis technique used is the Wilcoxon Signed Rank Test for ratio performance and Paired Sample T-test for abnormal return. The results of the testing of the hypothesis show that period 1 year before M&A and comparison comparison 2 years after M&A shows there is no significant difference in company financial performance before and after merger and acquisition. Hypothesis for Abnormal return, there is no difference before and after merger and acquisition.Penelitian ini bertujuan untuk menguji perbedaan kinerja perusahaan dan abnormal return sebelum dan sesudah merger dan akuisisi pada perusahaan yang terdaftar di Bursa Efek pada tahun 2014 hingga 2018. Periode observasi data adalah 1 tahun sebelum merger dan akuisisi dan 1& 2 tahun sesudah merger dan akuisisi. Metode analisa data yang digunakan adalah Wilcoxon Signed Rank Test dan Paired Sample T-Test untuk abnormal return. Hasil pengujian hipotesis menunjukkan bahwa periode 1 tahun sebelum M&A dan perbandingan 2 tahun setelah M&A menunjukkan tidak ada perbedaan signifikan dalam kinerja keuangan perusahaan sebelum dan sesudah merger dan akuisisi. Hipotesis untuk Abnormal return, tidak ada perbedaan sebelum dan sesudah merger dan akuisisi.

scholarly journals ANALISIS ABNORMAL RETURN DAN LIKUIDITAS SAHAM SEBELUM DAN SESUDAH STOCK SPLIT PERIODE 2008-2012

2015 ◽  
Vol 11 (1) ◽  
pp. 10
Author(s):  
Wening Asriningsih
Keyword(s):  
Event Study ◽  
Abnormal Return ◽  
T Test ◽  
Rank Test ◽  
Signed Rank ◽  
Significant Difference ◽  
Wilcoxon Signed Rank Test ◽  
Stock Split ◽  
Before And After ◽  
Signed Rank Test

Abstrak: Analisis Abnormal Return dan Likuiditas Saham Sebelum dan Sesudah Stock Split Periode 2008-2012. Penelitian ini bertujuan untuk mengetahui perbedaan abnormal return dan likuiditas saham sebelum dan sesudah stock split di perusahaan yang terdaftar di Bursa Efek Indonesia periode 2008-2012. Penelitian ini menggunakan desain event study, dimana dilakukan pengamatan 10 hari sebelum dan 10 hari sesudah peristiwa. Analisis data yang digunakan dalam penelitian ini adalah Uji Paired Sampel t-test dan Uji Wilcoxon Signed Rank test. Hasil penelitian menunjukkan bahwa tidak terdapat perbedaan abnormal return namun terdapat perbedaan likuiditas yang signifikan sebelum dan sesudah stock split periode 2008-2012. Hasil penelitian ini juga menunjukkan bahwa stock split mampu meningkatkan likuiditas.Kata kunci: stock split, abnormal return, likuiditas.Abstract: The Analysis of Abnormal Return and Liquidity Before and After Stock Split in 2008-2012. This study is aimed to find out the differences abnormal return and liquidity before and after stock split at the companies listed for the period of 2008 – 2012. This study is using event study, in which the writer observed within 10 days before and 10 days after the event date. Data analysis that is uses in this research is Paired Sample t-test and Wilcoxon Signed Rank test. The result of the study show that: there was no differences in abnormal return but there was a significant difference in liquidity before and after stock split. The result of this study indicate the stock split may improve liquidity.Key words: stock split, abnormal return, liquidity

scholarly journals ANALISIS PERBANDINGAN KINERJA KEUANGAN SEBELUM DAN SESUDAH MELAKUKAN AKUISISI DAN MERGER PADA PERUSAHAAN NON KEUANGAN

2020 ◽  
Vol 2 (2) ◽  
pp. 63-74
Author(s):  
Geovana Rizky Firdaus ◽  
Siti Ruhana Dara
Keyword(s):  
Financial Performance ◽  
Stock Exchange ◽  
Sampling Technique ◽  
Merger And Acquisition ◽  
T Test ◽  
Rank Test ◽  
Paired Sample ◽  
Signed Rank ◽  
Wilcoxon Signed Rank Test ◽  
Signed Rank Test

This study aims to analyze Comparative Analysis Before and After Merger and Acquisition of Financial Performance of Companies Listed on the Stock Exchange for the 2013-2017 period. The population used is a non-financial company registered on the IDX that carries out merger and acquisition activities for the period 2013-2017. Samples are determined by purposive sampling technique and obtained 9 companies. Types of quantitative research. The data analysis method used is the normality test, and hypothesis testing using the Wilcoxon signed-rank test non-parametric test paired sample t-test. Wilcoxon signed-rank test for CR, TATO, ROA and NPM, DER testing, paired sample t-test for DR at 1 and 4 years after mergers and acquisitions has Asymp.Sig (2-tailed) value is greater than the significance value set α = 0.05 (> 0.05). CR experiences significant differences, TATO has no difference 1 before and 4 years after, ROA and NPM get results that do not have significant differences, DER and DR did not experience significant results on financial performance. So that the company's financial performance remains a fairly stable situation.    

scholarly journals Penyerapan Informasi Masyarakat Terhadap Media Informasi Dinas Kominfo Kota Batam Studi Kasus Pembuatan Kartu Pencari Kerja Online

2020 ◽  
Vol 4 (1) ◽  
pp. 15-23
Author(s):  
Suci Tria Setianingsih ◽  
Nelmiawati Nelmiawati
Keyword(s):  
T Test ◽  
Rank Test ◽  
Paired Sample ◽  
Signed Rank ◽  
Wilcoxon Signed Rank Test ◽  
Signed Rank Test

Penelitian ini dilaksanakan untuk mengetahui sejauh mana penyerapan informasi oleh masyarakat dan menguji pemahaman masyarakat terhadap media pembuatan kartu pencari kerja online Dinas Kominfo Kota Batam. Dengan menggunakan desain penelitian kuantitatif dan survei, penelitian ini dilakukan terhadap 60 responden (30 responden pengujian video dan 30 responden pengujian website) pada usia produktif dalam bekerja. Pengumpulan data menggunakan pengujian tes yang dilakukan kepada responden berupa pemberian 10 pertanyaan sebelum dan setelah diperlihatkan media. Pengolahan data menggunakan aplikasi IBM SPSS Statistics Subscription Preview untuk Uji Shapiro-Wilk, Paired Sample T Test dan Wilcoxon Signed Rank Test dari data yang telah didapat dari pengujian tes. Didapat hasil dari pengujian Shapiro-Wilk pada sebelum dan setelah diperlihatkan video “Aplikasi Pelayanan Online Kecamatan (APOK) bagian Kartu Pencari Kerja” yaitu sebaran data pengujian tersebut berdistribusi normal dan mendapat nilai 0,0075 < 0,025 pada pengujian Paired Sample T-Test. Selanjutnya, didapat hasil dari pengujian Shapiro-Wilk pada sebelum dan setelah diperlihatkan website https://apok.batam.go.id/ bagian kartu pencari kerja yaitu sebaran data pengujian tersebut tidak berdistribusi normal dan mendapat nilai 0,001 < 0,05 pada pengujian Wilcoxon Signed Rank Test.

scholarly journals HOW COMPUTER TECHNOLOGY TRANSFORMS WRITING PERFORMANCE: AN INTEGRATION OF THE PROCESS/GENRE APPROACH AND BLOGS IN EFL WRITING COURSES

2016 ◽  
Vol 3 (Special) ◽  
pp. 169
Author(s):  
WEI-YU CHANG ◽  
ANDREW SZANAJDA
Keyword(s):  
Qualitative Data ◽  
T Test ◽  
Rank Test ◽  
Control Group ◽  
Writing Performance ◽  
Paired Sample ◽  
Signed Rank ◽  
Wilcoxon Signed Rank Test ◽  
Signed Rank Test ◽  
Experimental Group

This quasi-experimental research examined the effects of the process/genre approach (PGA) with the integration of blogs in EFL university-level students’ writing classrooms. This was a mixed-method study in which the participants’ essays and adopted questionnaires contributed to accumulating quantitative data while the interviews and observations provided qualitative data. The study took place over ten weeks at a university in central Taiwan in which paper-pencil instruction was applied in the control group, while blog instruction was employed for the experimental group. The students’ essays were computed by applying a paired-sample t-test, and the questionnaires were analysed by applying a Wilcoxon signed-rank test to determine whether there were any statistically significant differences in terms of the students’ writing performance and perceptions toward the PGA and blog writing after comparing the results of the pre-test and the post-test. The qualitative data was analysed to provide in-depth evidence to support the quantitative results. After the data analysis was completed, the paired-sample t-test demonstrated that there were significant differences in terms of the students’ writing performance in both groups, which demonstrates how the PGA developed the EFL university students’ writing performance. Because the students had more interactive opportunities to be exposed to the language inputs, this approach facilitated their English writing performance. The Wilcoxon signed-rank test presented that the students revealed positive attitudes toward writing blogs and also positive affections toward blog writing because they had higher levels of satisfaction and lower levels of apprehension when blogging. Moreover, there was a significant difference in terms of the factor of “learning with peers” in the control group since the PGA provided more interactive and communicative opportunities. The students also indicated greater understanding about their writing samples in the experimental group, since they were allowed to refer to the instructional contents on the blogs anytime and anywhere.

UJI BEDA PREFERENSI BELANJA IMPOR BARANG KIRIMAN ATAS PERUBAHAN BATAS PEMBEBASAN BEA MASUK

2020 ◽  
Vol 4 (1) ◽  
Author(s):  
Himawan Yusuf
Keyword(s):  
Consumer Preferences ◽  
T Test ◽  
Rank Test ◽  
P Value ◽  
Average Value ◽  
Signed Rank ◽  
Wilcoxon Signed Rank Test ◽  
Before And After ◽  
Initial Hypothesis ◽  
Signed Rank Test

ABSTRACT: Modification of threshold exemption from import duties was tested whether changing consumer preferences in shopping from abroad. This study uses a paired test with the initial hypothesis that there is no difference in the daily average value of imports before and after the policy is applied. The research data is only from the Customs offices which have services for shipment items (32 offices) on October 1, 2019, to March 2, 2020. Descriptive statistical results show that the average was USD135,065, then dropped to USD127,430. Based on the results, both the Paired Sample T Test and The Wilcoxon Signed Rank Test obtained a p-value of 0,000, meaning that the initial hypothesis was rejected. The adoption of this policy has changed the preferences of consumers shopping from abroad. The Government's aim to reduce the trade balance deficit and protect domestic businesses appears to be successful, however, if there are no substitute goods available in the country, the import will only move from importing consignment goods to general imports. The novelty is the variable of import duty on shopping preferences is not widely used. The limitation of this study only measures changes in spending preferences, do not in state revenue.Keywords: shopping preference, consignment, tax exemption, difference test ABSTRAK:Perubahan kebijakan batas pembebasan terhadap bea masuk dan pajak atas impor barang kiriman diuji apakah merubah preferensi konsumen dalam berbelanja barang yang dikirim langsung dari luar negeri melalui mekanisme impor barang kiriman. Penelitian ini menggunakan metode kuantitatif melalui uji berpasangan dengan hipotesis awal tidak adanya perbedaan nilai rerata impor harian baik sebelum maupun setelah kebijakan berlaku. Data penelitian hanya kantor-kantor Bea Cukai yang memiliki pelayanan atas barang kiriman (32 kantor) pada 1 Oktober 2019 sampai dengan 2 Maret 2020. Hasil statistik deskriptif menunjukkan bahwa rerata harian impor sebelum kebijakan tersebut berlaku sebesar USD135.065, kemudian turun menjadi USD127.430. Berdasarkan pengujian, baik pada Paired Sampel T Test maupun pada Wilcoxon Signed Rank Test diperoleh nilai p sebesar 0.000 (hipotesis awal ditolak). Hal ini berarti penerapan kebijakan tersebut telah merubah preferensi belanja dari luar negeri melalui impor barang kiriman. Tujuan Pemerintah untuk mengurangi defisit neraca perdagangan dan melindungi usaha dalam negeri tampaknya berhasil, namun apabila belum tersedia barang subtitusi di dalam negeri, importasi tersebut hanya akan berpindah dari impor barang kiriman menjadi impor umum. Keterbaruan pada penelitian ini adalah variabel bea masuk pada preferensi belanja belum banyak digunakan. Keterbatasan penelitian ini hanya mengukur perubahan preferensi belanja, tidak mengukur perubahan penerimaan negara.Kata Kunci: preferensi belanja, impor barang kiriman, pembebasan pajak, uji beda

scholarly journals Pengaruh Merokok Terhadap Perubahan Akut Tekanan Darah

2020 ◽  
Vol 1 (2) ◽  
Author(s):  
Muhammad Iskandar
Keyword(s):  
T Test ◽  
Rank Test ◽  
Paired Sample ◽  
Consecutive Sampling ◽  
Signed Rank ◽  
Wilcoxon Signed Rank Test ◽  
Post Test ◽  
Signed Rank Test

Latar Belakang. Rokok mengandung bermacam-macam zat kimia yang sebagian besar dari  zat tersebut adalah zat beracun. Beberapa diantaranya adalah nikotin dan CO, Nikotin dan CO mampu memengaruhi berbagai aktivitas didalam tubuh seperti aktivitas saraf simpatis, memengaruhi jumlah Nitrit Oksida, hingga bersaing dengan Oksigen dalam berpasangan dengan Haemoglobin didalam tubuh. Penelitian ini bertujuan untuk mengetahui pengaruh dari merokok terhadap perubahan akut tekanan darah seseorang. Objektif. Mengetahui perbedaan tekanan darah sebelum dan setelah merokok Metode. Penelitian ini merupakan penelitian eksperimental dengan desain one group pre test-post test. Sampel pada penelitian ini adalah mahasiswa laki-laki jurusan teknik mesin Universitas Andalas yang sudah merupakan perokok aktif sejak sebelum penelitian ini dilakukan.  Pengambilan sampel dilakukan dengan metode consecutive sampling, dan didapatkan jumlah sampel sebanyak 25 orang. Analisis data dilakukan menggunakan analisis univariat untuk mengetahui karakteristik sampel dan analisis bivariat dilakukan dengan tujuan untuk mengetahui ada atau tidaknya pengaruh akut dari merokok terhadap tekanan darah. Analisis bivariat dilakukan menggunakan Paired Sample T Test dan Wilcoxon Signed Rank Test. Hasil analisis bivariat ini dikatakan bermakna jika nilai p yang diperoleh < 0,05. Hasil. Hasil dari penelitian ini didapatkan perbedaan yang bermakna pada tekanan darah sebelum merokok dengan tekanan darah setelah merokok, ini ditunjukkan oleh perolehan nilai p yang <0,05 yaitu sebesar 0,001 pada tekanan darah sistolik dan 0,040 pada tekanan darah diastolik. Kesimpulan. Kesimpulan dari penelitian ini adalah terdapatnya pengaruh dari merokok terhadap perubahan akut tekanan darah. Kata kunci:  merokok, tekanan darah

scholarly journals Treatment for anxiety using spiritual emotional freedom technique

2020 ◽  
Vol 3 (1) ◽  
pp. 41
Author(s):  
Rima Pratiwi Fadli ◽  
Yola Eka Putri ◽  
Berru Amalianita ◽  
Nilma Zola ◽  
Ifdil Ifdil
Keyword(s):  
T Test ◽  
Rank Test ◽  
Test Results ◽  
Test Statistic ◽  
Stress Scale ◽  
Signed Rank ◽  
Significant Difference ◽  
Wilcoxon Signed Rank Test ◽  
Before And After ◽  
Signed Rank Test

This study aims to describe SEFT and treatment in the treatment of anxiety. This study used rapport cases on three clients. The research instrument used is rapport Client Case, observation and depression, Anxiety, and Stress Scale. The data obtained were analyzed by T-Test Statistic Nonparametric Wilcoxon Signed-Rank Test. The findings from the study showed that before treatment, the level of anxiety at very heavy levels and after the treatment became mild and normal. Based on T-test results found that there is a significant difference in anxiety level of clients before and after treatment. This means SEFT is effective for reducing client anxiety.

scholarly journals REAKSI PASAR MODAL INDONESIA TERHADAP PEMILIHAN PRESIDEN AMERIKA SERIKAT TAHUN 2020

2021 ◽  
Vol 7 (2) ◽  
pp. 189-202
Author(s):  
Jidan Apriyanto ◽  
Sri Mulyantini ◽  
Nurmatias Nurmatias
Keyword(s):  
Abnormal Return ◽  
Trading Volume ◽  
Abnormal Returns ◽  
T Test ◽  
Rank Test ◽  
Volume Activity ◽  
Index Model ◽  
Single Index Model ◽  
Signed Rank ◽  
Signed Rank Test

ABSTRAKTujuan penelitian ini adalah untuk mengetahui reaksi pasar modal Indonesia ketika terjadi peristiwa politik di Internasional. Perusahaan LQ45 periode Agustus 2020–Januari 2021 dipilih sebagai populasi dan sampel dengan menggunakan metode sample jenuh. Teknik single index model digunakan untuk mencari abnormal return.  Periode jendela peristiwa lima belas hari, dan tiga puluh hari periode estimasi dengan teknik analisis data gabungan antara One Sample t-test, One Sample Wilcoxon Signed Rank Test, dan Paired Sample t-test. Hasil analisis menunjukan tidak terdapat imbal hasil tak normal yang signifikan di sekitar periode peristiwa, tetapi kondisi abnormal return sebelum dan sesudah peristiwa pilpres AS 2020 mengalami perbedaan yang signifikan. Terdapat trading volume activity yang signifikan selama lima belas hari di sekitar periode peristiwa tersebut. Terjadi reaksi di LQ45 pada abnormal return tetapi tidak signifikan dengan trading volume activity yang signifikan. Dengan mempertimbangkan kedua hal tersebut pada saat terjadinya suatu peristiwa politik, investor dapat mengambil sikap dengan menggunakan analisis mendalam tentang kecenderungan return yang terdapat di sebuah pasar modal. ABSTRACTThe purpose of this research is to determine the reaction of the Indonesian capital market when international political events occur. LQ45 companies for the period August 2020–January 2021 were selected as the population and sample, using the saturated sample method. With the single index model technique to find the abnormal return. The event window period is fifteen days, and the estimation period is thirty days with a combined data analysis technique between One Sample t-test, one sample Wilcoxon Signed Rank Test and Paired Sample t-test. The results of the analysis showed that there were no significant abnormal returns around the event period, but the abnormal return conditions before and after the 2020 US presidential election experienced significant differences. There was significant trading volume activity for fifteen days around the event period. There was a reaction in LQ45 on abnormal returns but not significant with significant trading volume activity. By considering these two things when a political event occurs, investors can take a stand by using an in-depth analysis of the trend of returns in a capital market.

Frenotomy in Infants with Tongue-Tie and Breastfeeding Problems

2018 ◽  
Vol 35 (4) ◽  
pp. 706-712 ◽  
Author(s):  
Anjana Srinivasan ◽  
Alex Al Khoury ◽  
Svetlana Puzhko ◽  
Carole Dobrich ◽  
Meira Stern ◽  
...  
Keyword(s):  
Medical Community ◽  
Rank Test ◽  
Signed Rank ◽  
Wilcoxon Signed Rank Test ◽  
Before And After ◽  
Signed Rank Test ◽  
Breastfeeding Counseling ◽  
The Right ◽  
Breastfeeding Problems ◽  
Numeric Rating

Background: Infant tongue-tie can cause breastfeeding problems, which may be improved by frenotomy. However, controversy exists among the medical community. Research aim: To examine the influence of frenotomy on infants with posterior ankyloglossia, by quantifying the changes in breastfeeding and maternal nipple pain using standardized tools. Methods: Newborns ( N = 30) below 12 weeks of age were recruited from the Herzl–Goldfarb Breastfeeding Clinic between April 2014 and April 2015. Diagnosis of posterior ankyloglossia was made clinically. Frenotomy was performed. Mothers received breastfeeding counseling before and after the procedure. Pain and breastfeeding were assessed before the procedure, immediately after the procedure, and after 2 days, 7 days and 14 days. Breastfeeding was assessed using the LATCH Tool and by subjective questioning. Maternal nipple pain was assessed using the Numeric Rating System. Results: No complications were reported with frenotomy. There was a significant improvement in LATCH score immediately post-frenotomy, with an increase in median scores from 7.5 to 8.5 ( p < .0001, Wilcoxon signed rank test). There was a significant decrease in median pain score immediately post-frenotomy, from 3.0 on the left nipple and 3.25 on the right nipple, to 0 bilaterally ( p < .0001, Wilcoxon signed rank test). Subjective improvement in breastfeeding was reported by 90% of mothers immediately after frenotomy and 83% of mothers at Day 14. Conclusion: Frenotomy for posterior ankyloglossia may improve breastfeeding and nipple pain.

scholarly journals ANALYZING ABNORMAL RETURN BEFORE AND AFTER THE ANNOUNCEMENT OF MERGER AND ACQUISITION IN 2018

2018 ◽  
Vol 1 (2) ◽  
pp. 14-22
Author(s):  
Sonny Haryanto ◽  
Umi Mardiyati ◽  
Agung Dharmawan Buchdadi
Keyword(s):  
Mergers And Acquisitions ◽  
Stock Price ◽  
Abnormal Return ◽  
Abnormal Returns ◽  
T Test ◽  
Testing Hypotheses ◽  
Paired Sample ◽  
Minute Period ◽  
Before And After ◽  
Observation Period

This study aims to analyze the abnormal returns before and after the announcement of mergers and acquisitions in the companies listed on the IDX 2018. In this study the observation period taken was three days before and after the announcement of mergers and acquisitions with the number of samples observed were 9 companies. The method for calculating abnormal returns used is the market adjusted return by using an intraday stock price of 15 minutes. Based on testing hypotheses conducted by paired sample t-test, it was found that there were no significant differences in abnormal returns before and after the announcement of mergers and acquisitions in each 15 minute period.

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