test of homogeneity
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Author(s):  
Amaefula Chibuzo G

Understanding the seasonal epidemiology of diarrhoea, malaria and pneumonia relative to climatic factors is the thrust of the study. Empirical monthly data sets used covered the period of 2012M1-2019M12. Graphical exploration, methods of seasonal variability and Chi-square test of homogeneity were employed. The results showed that diarrhoea, malaria and Pneumonia are very high at the peak of rainy season (July-September) especially August, when humidity is relatively high and temperature is low. The result also indicted that the null hypothesis of no seasonal variation in the incidence of malaria and pneumonia is rejected in favour of the alternative as Chi-squared values are significant under 5% level respectively. This implies that the incidence of malaria and pneumonia have seasonal occurrence. However, the findings are imperative for the diseases seasonal determination, surveillance and control in Asaba, south-southern Nigeria. KEYWORDS: Seasonal epidemiology, Diarrhoea, malaria, pneumonia, climatic factors


2021 ◽  
Vol 1 (2) ◽  
pp. 50-56
Author(s):  
Luluk Mauli Diana

Penelitian ini bertujuan mengidentifikasi pengaruh atau tidaknya model pembelajaran kooperatif numbered head together (NHT) berbantuan media video terhadap hasil belajar pada mata pelajaran IPS (Siswa Kelas VII SMP MTS Al-Azhar Ajung Jember). Metode penelitian ini adalah quasi eksperimen. Subjek penelitian terdiri dari 38 siswa yang terbagi menjadi dua kelas, yaitu kelas A sebagai kelas eksperimen dan kelas B sebagai kelas kontrol. Pengumpulan data untuk hasil belajar dilakukan dengan melaksanakan tes hasil belajar. Uji prasyarat analisis data normalitas menggunakan uji Kolmogorov-Smirnov Test dan untuk homogenitas menggunakan uji Test of Homogeneity of Variance. Analisis data hipotesis menggunakan Multivariate Analysis of Variances (MANOVA) pada taraf signifikansi 0,05. Hasil penelitian menunjukkan bahwa ada pengaruh model numbered head together berbantuan media video terhadap hasil belajar dengan F hitung 33,72 dengan p-value (0,000). Saran untuk menerapkan model ini pada mata pelajaran lain baik IPS, IPA, atau bahasa. Berdasarkan paparan di atas, maka dapat disimpulkan bahwa model kooperatif numbered head together berbantuan media video berpengaruh terhadap hasil belajar siswa.


2021 ◽  
Vol 1 (1) ◽  
pp. 1-8
Author(s):  
Ardhi Khoirul Hakim ◽  
Fany Anitarini ◽  
Akhmad Yanuar Fahmi Pamungkas

Permasalahan bagi remaja dengan disabilitas fisik kerap mengalami pengucilan di lingkungan sekitarnya sehingga mereka akan mengalami perasaan rendah diri, frustrasi, menarik diri dari lingkungannya, merasa diri tidak berguna, dan sebagainya. Permasalahan ini akan dapat mempengaruhi sejauh mana dirinya mencapai kebahagiaan dalam hidup, sehingga individu dengan penyandang disabilitas akan rentan memiliki resiliensi yang rendah. Penelitian ini bertujuan untuk mengetahui pengaruh mindfulness spiritual Islam terhadap resiliensi pada remaja penyandang disabilitas fisik. Metode penelitian yang digunakan adalah Pra-Eksperimental dengan teknik Purposive Sampling. Total Populasi 54 responden dengan sampel yang didapatkan sejumlah 14 responden. Data yang dikumpulkan kemudian diolah menggunakan aplikasi SPSS 25 For Windows untuk Uji Normalitas SPSS Shapiro-Wilk, Uji Levene’s dan Uji Paired t-test dengan taraf signifikan 0,05 (5%). Hasil uji Normalitas SPSS Shapiro-Wilk dengan jumlah sampel peneletian sebanyak 14 responden, menunjukkan taraf signifikan resiliensi pada pre-test 0,316 > 0,05 dan resiliensi pada post-test sebesar 0,659 > 0,05, maka berdasarkan pengambilan keputusan dalam Uji Normalitas SPSS Shapiro-Wilk data hasil resiliensi responden adalah berdistribusi normal. Uji homogenitas levene’s yang telah dilakukan menunjukkan output Test of Homogeneity of Variences dengan nilai levene statistic diperoleh 0,061 dengan sig. diperoleh 0,806 > 0,05, dengan demikian dapat disimpulkan bahwa variabel berasal dari populasi yang homogen. Data yang diperoleh berdistribusi normal dan bersifat homogen maka peneliti menggunakan Paired t-test dengan hasil nilai sig. (2-tailed) = 0,005, sehingga dapat disimpulkan bahwa sig. (2-tailed) = 0,005 < α = 0,05. Hasil penelitian menunjukkan bahwa mindfulness spiritual Islam memiliki pengaruh yang bermakna terhadap resiliensi pada remaja penyandang disabilitas fisik dimana mereka akan lebih mampu bertahan dan bangkit dalam menghadapi permasalahan hidup dan kondisi sulit yang dialami di lingkungan keluarga, sosial, dan kehidupan masyarakat.


2021 ◽  
Vol 5 (2) ◽  
pp. 315
Author(s):  
Danis Safitri ◽  
Nurafni Nurafni

Pandemic Covid-19 has a big influence on various sectors, including the education sector. This makes educators make an innovation in the learning model, which combines a model of PBL-based google meet. The purpose of this study is to analyze the presence or absence of the influence of the PBL models based on google meets on the ability of mathematical problem-solving in grade IV during distance learning. The type of research used by researchers, namely quantitative. With research design a quasi-experiment with posttest only group design. Subjects in this study were students of class IV as many as 64 students. Data collection techniques interviews and tests. While the research instrument is in the form of a posttest. Data analysis used is descriptive analysis, a test of homogeneity, normality test, hypothesis test (t-test), and test the effect size. The results showed that the average value of the posttest experimental class of 76,25 higher than the control class that is 62,18. In hypothesis testing via t-test obtained the value of sig 0.47 that where the value is smaller than α=0.05 so that H0 is rejected and H1 is accepted. This means that there is an influence of the use of PBL models based on google meet on the ability of mathematical problem-solving in grade IV. So, the use of PBL models based on google meet can be applied to learning online.


Revemop ◽  
2021 ◽  
Vol 3 ◽  
pp. e202108
Author(s):  
Jesus Guadalupe Lugo-Armenta ◽  
Luis Roberto Pino-Fan ◽  
Blanca Rosa Ruiz Hernandez

The present article shows a historical-epistemological study on the Chi-square statistic. In which theoretical-methodological notions from the Onto-Semiotic Approach (OSA) of mathematical cognition and instruction were used to identify four problems that have been key to the evolution of the Chi-square statistic: the Goodness-of-fit-test, the test of independence, the test of homogeneity and distribution. Furthermore, various meanings of the Chi-square statistic were recognized in the mathematical-statistical practices that are used to solve each of those problems. These meanings could help to establish epistemic criteria that allow, on the one hand, to propose progressive levels of inferential reasoning for the statistic (from informal to formal); and on the other hand, to design tasks oriented to promote the understanding of the diverse meanings of the Chi-square.


Syntax Idea ◽  
2021 ◽  
Vol 3 (4) ◽  
pp. 948
Author(s):  
Vebriana Khofifah ◽  
Maftukin Hudah ◽  
Bertika Kusuma

Petanque adalah salah satu bentuk permainan olahraga yang bertujuan untuk melemparkan bola besi dekat ke arah bola kayu. Penelitian ini bertujuan untuk mengetahui seberapa besar pengaruh..latihan target cone dan ban terhadap hasil ketepatan shooting jarak 9..meter pada Atlet petanque Brebes. Dalam penelitian ini jenis penelitian yang digunakan yaitu penelitian kuantitatif dengan metode penelitian Quasi Experimental Design. Sedangkan desain penelitian menggunakan Two Grup Pretest-Posttest Desaign. Sampel yang digunakan sebanyak 8 Atlet petanque Kabupaten Brebes. Hasil penelitian ini menunjukan bahwa meningkatannya latihan target cone dan ban terhadap hasil ketepatan shooting jarak 9 meter bedasarkan hasil dari hitung tabel Test of Homogeneity of Variances diperoleh nilai Sig = 0.069. Homogenitas di Sig sebesar 5% atau 0.05, terlihat bahwa nilai Sig 0.069 > 0.05, maka untuk keseluruhan variabel hipotesi telah di terima. Kesimpulan dari penelitian ini ada pengaruh latihan target cone dan ban terhadap hasil ketepatan shooting jarak 9 meter pada Atlet.petanque di.Kabupaten Brebes.


Author(s):  
Harish Kumar Banga ◽  
Pankaj Goel ◽  
Raman Kumar ◽  
Vikas Kumar ◽  
Parveen Kalra ◽  
...  

The use of dental hand pieces endanger dentists to vibration exposure as they are subjected to very high amplitude and vibration frequency. This paper has envisaged a comparative analysis of vibration amplitudes and transmissibility during idling and drilling with micro motor (MM) and air-turbine (AT) hand pieces. The study aims to identify the mean difference in vibration amplitudes during idling, explore different grasp forces while drilling with irrigant injection by the dentist, and various vibration transmission of these hand pieces. The study utilized 22 separate frequency resonances on two new and eight used MMs and two new and eight used ATs of different brands by observing the investigator at 16 different dentist clinics. The study adopted a descriptive research design with non–probability sampling techniques for selecting dentists and hand pieces. Statistical methods like Levene Test of Homogeneity, Welch ANOVA, independent t-test, and Games–Howell test were utilized with SPSS version 22 and MS-Excel. The results reveal that vibration amplitudes and vibration transmissibility when measured at position 2 are higher than in another position 1. Vibrations during idling for used MMs are more than AT hand pieces, and the used MM (MUD) and used AT (AUA) hand pieces differ due to their obsolescence and over-usage. Vibration amplitudes increase every time with the tightening of grasping of the hand piece. Vibration amplitudes for each grasping style of MM hand piece differ from all other grasping styles of AT hand pieces. Routine exposure to consistent vibrations has ill physical, mental, and psychological effects on dentists. The used hand pieces more hazardous as compared to newer ones. The study suggests that these hand pieces must be replaced periodically, sufficient to break between two operations, especially after every hand piece usage. Hence, the present research work can be further extended by creating some control groups among dentists and then studying the vibration amplitude exposure of various dental hand pieces and subsequent transmissibility to their body parts.


Author(s):  
Abdul Azis ◽  
Sakdiyah Sakdiyah

This study aims: to determine the effect of the application of the Gallery of Learning the learning achievement of students of Universitas Syiah Kuala. This study uses a quantitative approach and the type of experimental research. The population in this study are students of history education, amounting to 46 people. This research data collection techniques using tests and documentation. As for the stage of data analysis techniques in this study were; (1) calculate the average; (2) calculate the variance and standard deviation; (3) test for normality data; (4) test of homogeneity of variance; and t-test. Based on the data analysis stage it is obtained:Final test homogeneity of variance test experiment and control class was 1.53 and 0.49 t-test results. Results of research found is the implementation strategy of lear(gallery of learning) effect on student learning achievement history educationhistory of Universitas Syiah Kuala. Data Distribution final test scores of students in the experimental and control group with normal distribution based on a significant level ≤ X2countX2 tablenamely 7.81 and 4.51 ≤ 4.93 ≤ 7.81, to test the homogeneity of F ≤ 1.53 ≤ 2.03 Ftabel = then the data variance experimental class and control class homogeneous. The results of t-test to analyze the effect of learning outcomes by using strategies learned gallery acquired the t-test is t = 0.49, while table = 1.68. Means that t ≥ 1.68 ≥ table = 0.49.


Author(s):  
U. Agbondinmwin ◽  
R.S. Ebhojiaye

In this study, multiple linear regression models were employed in the correlation of gas supply and power generation using a gas Power Plant in Niger Delta, Nigeria as a Case study. From the analysis based on outlier detection, reliability analysis and test of homogeneity, it was observed that the independent variable data such as ambient temperature, gas pressure and compressed temperature failed normality test. Therefore, the use of any linear model for either analysis or modelling of the data was not acceptable. Data used for reliability analysis of the gas pressure and compressed temperature difference were positively correlated with power generation, having a covariance value of 0.639 and 113.148. The ambient temperature was negatively correlated with power generation, having a covariance value of 14.564. The positive value showed that both dimensions exclusively increased and decreased together with respect to the output while the negative value showed that increment in value of one variable led to decrease in the value of the other, and vice versa.


2021 ◽  
Vol 24 (12) ◽  
pp. 2071-2075
Author(s):  
S.D. Iyeke ◽  
I.R. Ilaboya ◽  
E.I. Abulu

Decline in air quality over the years has been linked to the growing rate of urbanization and the increase in the number of vehicles plying the roads. The focus of this study is to monitor the incidence of vehicular emissions in some parts of Benin City and employ geostatistical techniques such as kriging interpolation to study the spatial distribution of some selected pollutants around the study area. Seven (7) georeferenced points, namely; University of Benin Main Gate, Ekosodin junction, Agen Junction, Super D junction, Nitel junction, Okhunmwun junction and Oluku Market junction were used for data collection. Pollutant from vehicular emission, namely; dinitrogen oxide (NO2), carbon monoxide (CO) including the total radiation were monitored in the morning and evening for a period of 35 days (7th July to 12th August 2020) with the aid of portable toxic gas monitors and radiation alert meters. Other parameters of interest which were also measured include; maximum temperature and wind speed using infra-red thermometers and portable anemometer. To ascertain the quality of the data, selected preliminary analysis, namely; test of normality, test of homogeneity, outlier detection and reliability test were done. Results of the study revealed a growing concentration of CO and NO2 around Ugbowo maingate and Okhunmwun community especially during the peak hours.


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