scholarly journals COMPARISON TEST OF FNAA AND AAS METHOD FOR Cu, Cd, Cr, AND Pb ANALYSIS OF CODE RIVER SEDIMENT (INDONESIA)

2010 ◽  
Vol 8 (2) ◽  
pp. 158-162 ◽  
Author(s):  
Sunardi Sunardi ◽  
C. Supriyanto
Keyword(s):  
River Sediment ◽  
T Test ◽  
Standard Reference Materials ◽  
Sampling Location ◽  
F Test ◽  
Fast Neutron Activation Analysis ◽  
Sediment Samples ◽  
Comparison Test ◽  
Significant Difference ◽  
Aas Method

Comparison test of Fast Neutron Activation Analysis (FNAA) and Atomic Absorption Spectrometry (AAS) method for analysis of Cu, Cd, Cr, Pb elements in Code river sediment samples has been done. Comparisons of test used Standard Reference materials (SRM) sample, covering the validation test, t test and F test for both method and then these methods were used to analyze the Code river sediment samples. Comparisons test result show that the validity of both method are around 92.69 % to 98.12 % and t test show that there is no significant difference in average concentration, F test of both methods show that there is no difference in accuracy. The analysis  result of Code sediment using FNAA for Cu, Cd, Cr, Pb are (15.41 - 53.92) ppm, (1.82 - 3.66) ppm, (14.72 - 87.28) ppm, (18.23 - 109.31) ppm respectively, while those using AAS method are (13.71 - 51.11) ppm, (1.64 - 3.33) ppm, (12.81 - 86.75) ppm, (15.74 - 105.53) ppm, respectively. Statistic result test using ANOVA method showed that the concentration of Cr are not significantly differences within sampling locations, while those for Cd, Cr, Pb show a significant difference within sampling location   Keywords: FNAA, AAS, Cu, Cd, Cr, Pb, sediment samples

scholarly journals THE VALIDITY OF FNAA AND AAS METHOD FOR ANALYSIS OF Cu AND Fe ELEMENTS IN BIOTA SAMPLES

2010 ◽  
Vol 9 (2) ◽  
pp. 236-242
Author(s):  
Sunardi Sunardi ◽  
Samin Samin ◽  
C. Supriyanto
Keyword(s):  
Limit Of Detection ◽  
T Test ◽  
Test Results ◽  
Z Score ◽  
F Test ◽  
Validity Test ◽  
Validation Test ◽  
Significant Difference ◽  
Aas Method ◽  
Biota Samples

The validity test of Fast Neutron Activation Analysis (FNAA) and Atomic Absorption Spectrometry (AAS) method for analysis of Cu and Fe elements in biota samples has been done. The validity test was represented by the validation test, homogenous test, Z-score test, t test and F test for both methods. The respective validity test results for Cu and Fe elements show that the FNAA precision test were 2.28% and 2.96% while the accuracy were 98.07% and 98.55%, and the precision of AAS validation test results were 1.72% and 2.29% and the accuracy were 98.50% and 98.35%. The uncertainty results for Cu and Fe by FNAA were 2.74% and 3.42%, while AAS were 2.98% and 3.73%. The limit of detection  for both methods of Cu and Fe were 1.05 µg/g and 1.35 µg/g, while AAS were 0.05 µg/g  and 0.904 µg/g, and the value of Z-score in the range ≥-2 and ≤+2 for both methods. In this case the precision, accuracy, uncertainty, limit of detection and value Z-score on both methods  are valid or property to be applied for element analysis. After FNAA and AAS methods were validated then were applied for determining of element contents in biota samples. From the homogenous test result was found that the samples of biota is homogeny, while t test shows that there is no significant difference in average concentration, F test of both methods shows that there is no difference in accuracy.   Keywords: The validity test, FNAA and AAS, Cu and Fe, biota samples

scholarly journals The Effect of Demographic Factors on Consumer Purchase Intention in Buying Television Set in Kathmandu Valley: An Empirical Study

Pravaha ◽  
2020 ◽  
Vol 25 (1) ◽  
pp. 23-32
Author(s):  
Bharat Rai
Keyword(s):  
Purchase Intention ◽  
Age Groups ◽  
Demographic Factors ◽  
T Test ◽  
Primary Data ◽  
Sampling Location ◽  
Level Of Education ◽  
Anova Test ◽  
Significant Difference ◽  
The Impact

The main objective of the research is to identify the impact of demographic factors on purchase intention. The study examine whether there is any significant differences on consumers’ purchase intention of television across gender, age groups and education level. Primary data has been used in the study. The structured questionnaire has been used for collection of primary data. Convenient sampling technique has been used to collect information from the respondents and 394respondents have been taken from customers buying Television in Kathmandu. The sampling location for the research has been allocated in show room, colleges and houses in Kathmandu. Age, gender and level of education have been taken as independent variables and purchase intention has been taken as dependent variable. Percentage has been used to analyze the purchase intention of respondents; independent sample t-test and ANOVA Test have been used to analyze the collected data and to draw valid conclusions by using SPSS. The result of independent sample t-test showed that there is no significant difference on purchase intention between male and female in buying television in Nepalese market. The result of ANOVA Test showed that there is no significant difference on purchase intention among different age groups. But the result of ANOVA Test showed that there is significant difference on purchase intention among different level of education.

scholarly journals Perbandingan FEV1 antara subjek perokok dan non perokok pada mahasiswa Fakultas Kedokteran Universitas Sam Ratulangi Manado

e-CliniC ◽  
2016 ◽  
Vol 4 (2) ◽  
Author(s):  
Maniata F. Bata ◽  
Maarthen C.P. Wongkar ◽  
Bisuk P. Sedli
Keyword(s):  
Medical Students ◽  
Lung Function ◽  
Forced Vital Capacity ◽  
Vital Capacity ◽  
Forced Expiratory Volume ◽  
Study Data ◽  
T Test ◽  
F Test ◽  
Anova Test ◽  
Significant Difference

Abstract: Smoking is one of the factors causing decline of lung function characterized by impairment of Forced Expiratory Volume in 1 second (FEV1), Forced Vital Capacity (FVC), and FEV1/FVC. This study was aimed to obtain the differences in FEV1 between smokers and non smokers, among smokers based on duration of smoking, and among smokers based on the number of cigarettes per day in medical students of University of Sam Ratulangi Manado. This was an observational analytic study. Data were analyzed by using the independent T test and the ANOVA with the F Test. Subjects were 40 males, consisted of 20 smokers and 20 non-smokers. Six smokers had smoked for 2-5 years and 14 smokers had smoked for >5 years. Smoking less than10 cigarettes/day, 10-20 cigarettes/day, and more than 20 cigarettes/day were found in 8, 9, and 3 subjects respectively. The independent T-test showed that there was no significant difference in FEV1 between smokers and non-smokers (p=0.250). The independent T-test also showed that there was no significant difference in FEV1 between smokers of 2-5 years and smokers of more than 5 years (p=0.117). The ANOVA test showed that there was no significant difference in FEV1 between smokers of <10 cigarettes/day, 10-20 cigarettes/day, and >20 cigarettes/day (p=0.481). Conclusion: In this study there were no significant differences in FEV1 between smokers and non smokers, among smokers based on duration of smoking, and among smokers based on the number of cigarettes per day.Keywords: smoker, non smoker, FEV1, duration of smoking, number of cigarette Abstrak: Merokok adalah salah satu faktor penyebab penurunan fungsi paru yang ditandai oleh penurunan nilai volume Forced Expiratory Volume in 1 Second (FEV1), Forced Vital Capacity (FVC), dan rasio FEV1/FVC. Penelitian ini bertujuan untuk mengetahui perbedaan FEV1 antara subjek perokok dan non perokok, antar subjek perokok berdasarkan lama merokok, dan antar subjek perokok berdasarkan jumlah batang rokok yang dihisap per hari pada mahasiswa Fakultas Kedokteran Universitas Sam Ratulangi. Jenis penelitian ialah observasional analitik dengan uji T independent dan uji ANOVA dengan uji F. Subjek penelitian ialah 40 orang laki-laki terdiri dari 20 subjek perokok dan 20 subjek non perokok. Hasil penelitian mendapatkan terdapat 6 subjek perokok yang telah merokok selama 2-5 tahun dan 14 subjek telah merokok selama >5 tahun sedangkan yang menghisap rokok <10 batang/hari, 10-20 batang/hari, dan >20 batang/hari ialah masing-masing 8 orang, 9 orang, dan 3 orang. Uji T-independent menunjukkan tidak terdapat perbedaan bermakna antara FEV1 subjek perokok dan non perokok (p=0,250). Hasil uji T independent terhadap perbedaan FEV1 subjek perokok yang telah merokok 2-5 tahun dengan yang telah merokok >5 tahun mendapatkan p=0,117. Uji ANOVA terhadap perbedaan nilai FEV1 antara subjek perokok yang menghisap rokok sebanyak <10 batang/hari, 10-20 batang/hari, dan >20 batang/hari mendapatkan p=0,481. Simpulan: Pada penelitian ini tidak terdapat perbedaan bermakna antara FEV1 subjek perokok dan non perokok, antar subjek perokok berdasarkan lama merokok, dan antar subjek perokok berdasarkan jumlah batang rokok yang dihisap per hari.Kata kunci: perokok, non perokok, FEV1, lama merokok, jumlah batang rokok

scholarly journals Influence of Motivation and Job Training The Performance of Employees PT. RB Sukasada Palembang.

2017 ◽  
Vol 3 (2) ◽  
pp. 147
Author(s):  
Ika Rakhmalina ◽  
Emelda Emelda ◽  
Harapin Hafid ◽  
Periansya Periansya
Keyword(s):  
Job Training ◽  
Employee Performance ◽  
T Test ◽  
Coefficient Of Determination ◽  
Special Science ◽  
F Test ◽  
Analysis Techniques ◽  
Significant Difference ◽  
Scale Interval ◽  
Statistical Program

<p>The purpose of this study was to determine the effect of motivation and job training to employees performance of PT. RB Sukasada. This research is causality. The population in this study is the overall employees of PT. RB Sukasada Jl. Kebumen Land No. 901-902, 17 Ilir, Ilir Tim. I, Palembang, South Sumatra 30122, amounting to 39 employees, with census sampling.Data collection techniques used in this study was a questionnaire with the answer given a score based on a scale interval of 1-5 with the Likert method. With multiple linear regress analysis tools. The next test of the hypothesis that f test and t-test to determine of independent variables on the dependent variable, and making inferences. Data analysis techniques in this study assisted by the Statistical program for special science (SPSS) The results of research by F test resulted in no significant effect Motivation and Job Training together with the Employee Performance at PT. RB Sukasada with a coefficient of determination <em>(R Square)</em> of 34.9%. While based on the t-test a significant difference between motivation and job training partially on performance. With the results of multiple regression 57.0% effect of motivation on the performance and 47.6% influence on the performance of job training. Conclusion motivation and job training are still low in achieving performance. </p>

scholarly journals Post-integration Effect of e-NAM in Nawapara APMC, Chhattisgarh

2021 ◽  
Vol 66 (3) ◽  
Author(s):  
Hehlangki Tyngkan
Keyword(s):  
Positive Impact ◽  
T Test ◽  
Test Results ◽  
F Test ◽  
Study Results ◽  
Significant Difference ◽  
Before And After ◽  
Integration Effect ◽  
The Impact

The present study was carried out in Nawapara APMC in Chhattisgarh to examine the changes brought about by the e-NAM intervention in the arrivals and prices of paddy. To identify the factors that influence farmers’ participation in the e-NAM platform, several 75 farmers were selected and interviewed. F test and t-test were adopted to analyze the equality of variances and means of the market arrivals and prices of paddy before and after e-NAM adoption. The study results show that both the monthly arrivals and modal prices of paddy were higher post-e-NAM integration than before it was integrated. The percentage changes before and after e-NAM in the arrivals and prices were 29.28 percent and 24.21 percent, respectively. There is no significant ratio in variances, whereas there is a significant difference in the means of both the arrivals and prices, as shown by F and t t-test results. The factors that motivated the farmers to do trading on the e-NAM platform were found to be influenced mainly by remunerative price followed by better price than the open auction, more transparency, and absence of middlemen. This indicated that the implementation of the e-NAM platform has a positive impact on arrivals and prices. The impact may be more visible once it is implemented in the true sense of conceptualized.

scholarly journals ANALYSIS OF DIFFERENCES IN TRANSFORMATIONAL LEADERSHIP BETWEEN GENERATIONS X AND Y AND THE EFFECT ON POWER PLANT COMPANY PERFORMANCE

2021 ◽  
Vol 1 (2) ◽  
pp. 373-380
Author(s):  
Ilma Azam Firman Syatoto
Keyword(s):  
Transformational Leadership ◽  
Generation X ◽  
Generation Y ◽  
T Test ◽  
Coefficient Of Determination ◽  
Company Performance ◽  
Intellectual Stimulation ◽  
F Test ◽  
Significant Difference ◽  
Inspirational Motivation

This study analyzes the differences in transformational leadership between generation X and generation Y and its effect on company performance in two power generation companies in North Sumatra Province. The number of samples was 50 people in each group of generations X and Y. Data analysis using SPSS included F-test, T-test, the coefficient of determination, and independent sample T-test. The F-test shows that charismatic variables, inspirational motivation, intellectual stimulation, and individual considerations simultaneously affect the performance of each group of generation X and generation Y. The results of the T-test in generation X show that the variables of inspirational motivation and individual considerations are partially has a positive and significant effect on company performance, meanwhile in generation Y only charismatic variables have a positive and significant influence on company performance. The results of the coefficient of determination said that the transformational leadership of generation X contributed 70.2% to the company performance, while the transformational leadership of the Y generation contributed 22.3% to the company performance. Independent sample T-test said that there was a significant difference between the transformational leadership of the generation X and generation Y.

scholarly journals Effect of Personal Variables of Youths of Rajkot District on Their Health Care Awareness

2014 ◽  
Vol 2 (1) ◽  
Author(s):  
Mohit M. Pandya ◽  
Dr. D. J. Bhatt
Keyword(s):  
Health Care ◽  
T Test ◽  
Test Results ◽  
Education Faculty ◽  
District Health ◽  
F Test ◽  
Personal Variables ◽  
Significant Difference ◽  
Gender Education ◽  
The Impact

The study was designed to investigate the impact of certain socio personal variables on Health Care Awareness of youths‟ of Rajkot district. The sample consisted of 240 youths‟ (120 Male/120 Female) selected randomly from Rajkot district. Health Care Awareness scale of Dr. D. J. Bhatt and K.N. jhalodiya was used. Data were analysis by „F‟ test and„t‟ test. Results revealed that there exists a No significant difference between the youths‟ socio personal variables ed. Gender, Education, Area, Age, Type of family, Family members, Education faculty and their Health Care awareness.

PENGARUH KOMPETENSI, MOTIVASI, DAN KOMUNIKASI TERHADAP KINERJA PEGAWAI PADA DINAS PEKERJAAN UMUM DAN PENATAAN RUANG KABUPATEN BANDUNG BARAT

2019 ◽  
Vol 2 (2) ◽  
pp. 1-14
Author(s):  
Lydia Novi Yanti
Keyword(s):  
Case Studies ◽  
Secondary Data ◽  
T Test ◽  
Civil Servants ◽  
Quantitative Approach ◽  
Research Approach ◽  
Validity And Reliability ◽  
F Test ◽  
Simultaneous Test

This research is conducted in order to assess the effect of competency, motivation, and communication on employee’s performance (case studies at Dinas Pekerjaan Umum dan Penataan Ruang West Bandung Regency) partially and simultaneously. There are many factors that affect the employee’s performance, but this research is only limited to the factors of competency, motivation, and communication. The researcher used primary and secondary data. The research approach used is quantitative approach which the samples are 55 civil servants which is assessed by 5 Heads of Fields and 2 Heads Sub-Division. Before analyzing, all research validity and reliability instruments are examined. After the data are valid and reliable then analyzed by using classical assumption test, partial test (t test), and simultaneous test (F test) helping by IBM SPSS version 23 software. The result of analysis showed that competency, motivation, and communication variables are affected positively significantly and partially to the employee’s performance. Competency, motivation, and communication variables simultaneously affected positively and significantly about 54,3% and the rest is about 45,7% affected by other variable that is not observed in this research.  

The Influence of Age and Gender on Mandibular Indices among the Libyan Population

2019 ◽  
Vol 3 (2) ◽  
Keyword(s):  
Negative Correlation ◽  
Bone Mineralization ◽  
Age Groups ◽  
T Test ◽  
Chi Square ◽  
Age And Gender ◽  
Significant Difference ◽  
Chi Square Test ◽  
And Gender ◽  
Libyan Population

Radiographic Mandibular Indices serve as easy and relatively cheap tools for evaluating bone mineralization. Objectives: To examine the effect of age and gender on three mandibular indices: the panoramic mandibular index (PMI), the mandibular ratio (MR) and the mandibular cortical index (MCI), among Libyan population. Methods: The three indices were measured on 317 digital (OPGs) of adult humans (155 males, 162 females). The sample was divided into six age groups (from 18-25 years through 56-65 years). The measurements were analyzed for interactions with age and sex, using SPSS (Statistical Package for Social Studies) software version no. 22. The tests employed were two way ANOVA, the unpaired T-test and chi-square test. Results: The mean PMI fluctuated between 0.37 s.d. 0.012 and 0.38 s.d. 0.012. among the sixth age groups. One-way ANOVA statistical test revealed no significant of age on PMI. On the other hand gender variation has effect on PMI, since independent sample t-test disclosed that the difference between the male and female PMI means statistically significant. ANOVA test showed that the means of MR among age groups showed a negative correlation i.e. MR mean declined from 3.01 in 18-25 age groups to 2.7 in 55-65 age groups. In contrary, the gender showed no effect on MR according two sample t-test at p> 0.05. In regards with MCI, statistical analysis showed that it affected by age that is C1 was decreasing by age while C2 and C3 were increased by age. Using chi square test the result indicated that there is a significant difference among the different age group and the two genders in MCI readings. Conclusion: PMI was influenced significantly by age but minimally by the gender. MR is not affected by gender but has a negative correlation with age. MCI is affected by both age and gender

SENSITIVITAS ETIS MAHASISWA ATAS PENGGELAPAN PAJAK

2017 ◽  
Vol 8 (2) ◽  
pp. 178-195
Author(s):  
Nurma Risa
Keyword(s):  
Tax Evasion ◽  
Female Students ◽  
T Test ◽  
Study Program ◽  
Male And Female ◽  
Political Sciences ◽  
Significant Difference ◽  
The Subject ◽  
And Gender ◽  
Management Students

This study aims to prove that there is a difference of perception about ethics on tax evasion in UNISMA Bekasi students, based on selected study program and gender. The sample of this research is the students who have fulfilled the subject of taxation, at the Faculty of Economics (FE) and Faculty of Social and Political Sciences (FISIP). Using independent t-test, the results showed that there was no significant difference of perception about tax evasion ethics between FE and FISIP students. But significant differences the perception of tax evasion ethics occur between accounting and management students at FE. Significant differences also did not occur between male and female students

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