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Papers by tofik mussa

Research paper thumbnail of Sampling Distribution and Simulation in R

Simulation plays important role in many problems of our daily life. There has been increasing int... more Simulation plays important role in many problems of our daily life. There has been increasing interest in the use of simulation to teach the concept of sampling distribution. In this paper we try to show the sampling distribution of some important statistic we often found in statistical methods by taking 10,000 simulations. The simulation is presented using R-programming language to help students to understand the concept of sampling distribution. This paper helps students to understand the concept of central limit theorem, law of large number and simulation of distribution of some important statistic we often encounter in statistical methods. This paper is about one sample and two sample inference. The paper shows the convergence of t-distribution to standard normal distribution. The sum of the square of deviations of items from population mean and sample mean follow chi-square distribution with different degrees of freedom. The ratio of two sample variance follow F-distribution. It is interesting that in linear regression the sampling distribution of the estimated parameters are normally distributed.

Research paper thumbnail of Assessment of knowledge, attitude and practice toward COVID-19 and associated factors among health care workers in Silte zone, southern Ethiopia

Introduction COVID-19 is a pandemic respiratory disease caused by the highly contagious novel cor... more Introduction COVID-19 is a pandemic respiratory disease caused by the highly contagious novel coronavirus (SARS-CoV 2). The disease is now quickly spreading around the world, resulting in ongoing coronavirus pandemic. Healthcare workers are more susceptible to COVID-19 infection than the general population due to frequent contact with infected individuals. Objective This study was aimed to assess knowledge, attitude and practice towards COVID-19 and associated factors among health care workers. Methods Facility-based cross-sectional study design was conducted among health care workers in Silte Zone. A total of 379 health professionals were selected using multistage stratified sampling technique. Self-administered questionnaire was used to collect data. Binary logistic regression model was used to see association between outcome and independent variables. Results This study found 74.9%, 84.2% and 68.9% prevalence of adequate knowledge, positive attitude and good practice respectively. Working in comprehensive specialized hospital (AOR = 4.46, 95% CI = 1.46-13.62).having MSC degree (AOR = 10.26, 95% CI = 2.27-46.44),

Research paper thumbnail of Zur Kenntnis Von Diaphorodoris Gastr Nudibranchia Und Ihrer Mediterranen Formen

Verhandlungen der Naturforschenden Gesellschaft in Basel, Apr 7, 1960

Research paper thumbnail of Determinants of Knowledge, Attitude and Practice towards preventive measures of COVID-19 among adult residencies in Silte Zone, Southern Ethiopia

Pan African Medical Journal

Research paper thumbnail of Assessment of knowledge, attitude and practice toward COVID-19 and associated factors among health care workers in Silte zone, southern Ethiopia

Introduction COVID-19 is a pandemic respiratory disease caused by the highly contagious novel cor... more Introduction COVID-19 is a pandemic respiratory disease caused by the highly contagious novel coronavirus (SARS-CoV 2). The disease is now quickly spreading around the world, resulting in ongoing coronavirus pandemic. Healthcare workers are more susceptible to COVID-19 infection than the general population due to frequent contact with infected individuals. Objective This study was aimed to assess knowledge, attitude and practice towards COVID-19 and associated factors among health care workers. Methods Facility-based cross-sectional study design was conducted among health care workers in Silte Zone. A total of 379 health professionals were selected using multistage stratified sampling technique. Self-administered questionnaire was used to collect data. Binary logistic regression model was used to see association between outcome and independent variables. Results This study found 74.9%, 84.2% and 68.9% prevalence of adequate knowledge, positive attitude and good practice respectively. Working in comprehensive specialized hospital (AOR = 4.46, 95% CI = 1.46-13.62).having MSC degree (AOR = 10.26, 95% CI = 2.27-46.44),

Research paper thumbnail of Assessment of knowledge, attitude and practice toward COVID-19 and associated factors among health care workers in Silte Zone, Southern Ethiopia

PLOS ONE

Introduction COVID-19 is a pandemic respiratory disease caused by the highly contagious novel cor... more Introduction COVID-19 is a pandemic respiratory disease caused by the highly contagious novel coronavirus (SARS-CoV 2). The disease is now quickly spreading around the world, resulting in ongoing coronavirus pandemic. Healthcare workers are more susceptible to COVID-19 infection than the general population due to frequent contact with infected individuals. Objective This study was aimed to assess knowledge, attitude and practice towards COVID-19 and associated factors among health care workers. Methods Facility-based cross-sectional study design was conducted among health care workers in Silte Zone. A total of 379 health professionals were selected using multistage stratified sampling technique. Self-administered questionnaire was used to collect data. Binary logistic regression model was used to see association between outcome and independent variables. Results This study found 74.9%, 84.2% and 68.9% prevalence of adequate knowledge, positive attitude and good practice respectively...

Research paper thumbnail of Sampling Distribution and Simulation in R

Simulation plays important role in many problems of our daily life. There has been increasing int... more Simulation plays important role in many problems of our daily life. There has been increasing interest in the use of simulation to teach the concept of sampling distribution. In this paper we try to show the sampling distribution of some important statistic we often found in statistical methods by taking 10,000 simulations. The simulation is presented using R-programming language to help students to understand the concept of sampling distribution. This paper helps students to understand the concept of central limit theorem, law of large number and simulation of distribution of some important statistic we often encounter in statistical methods. This paper is about one sample and two sample inference. The paper shows the convergence of t-distribution to standard normal distribution. The sum of the square of deviations of items from population mean and sample mean follow chi-square distribution with different degrees of freedom. The ratio of two sample variance follow F-distribution. It is interesting that in linear regression the sampling distribution of the estimated parameters are normally distributed.

Research paper thumbnail of Assessment of knowledge, attitude and practice toward COVID-19 and associated factors among health care workers in Silte zone, southern Ethiopia

Introduction COVID-19 is a pandemic respiratory disease caused by the highly contagious novel cor... more Introduction COVID-19 is a pandemic respiratory disease caused by the highly contagious novel coronavirus (SARS-CoV 2). The disease is now quickly spreading around the world, resulting in ongoing coronavirus pandemic. Healthcare workers are more susceptible to COVID-19 infection than the general population due to frequent contact with infected individuals. Objective This study was aimed to assess knowledge, attitude and practice towards COVID-19 and associated factors among health care workers. Methods Facility-based cross-sectional study design was conducted among health care workers in Silte Zone. A total of 379 health professionals were selected using multistage stratified sampling technique. Self-administered questionnaire was used to collect data. Binary logistic regression model was used to see association between outcome and independent variables. Results This study found 74.9%, 84.2% and 68.9% prevalence of adequate knowledge, positive attitude and good practice respectively. Working in comprehensive specialized hospital (AOR = 4.46, 95% CI = 1.46-13.62).having MSC degree (AOR = 10.26, 95% CI = 2.27-46.44),

Research paper thumbnail of Zur Kenntnis Von Diaphorodoris Gastr Nudibranchia Und Ihrer Mediterranen Formen

Verhandlungen der Naturforschenden Gesellschaft in Basel, Apr 7, 1960

Research paper thumbnail of Determinants of Knowledge, Attitude and Practice towards preventive measures of COVID-19 among adult residencies in Silte Zone, Southern Ethiopia

Pan African Medical Journal

Research paper thumbnail of Assessment of knowledge, attitude and practice toward COVID-19 and associated factors among health care workers in Silte zone, southern Ethiopia

Introduction COVID-19 is a pandemic respiratory disease caused by the highly contagious novel cor... more Introduction COVID-19 is a pandemic respiratory disease caused by the highly contagious novel coronavirus (SARS-CoV 2). The disease is now quickly spreading around the world, resulting in ongoing coronavirus pandemic. Healthcare workers are more susceptible to COVID-19 infection than the general population due to frequent contact with infected individuals. Objective This study was aimed to assess knowledge, attitude and practice towards COVID-19 and associated factors among health care workers. Methods Facility-based cross-sectional study design was conducted among health care workers in Silte Zone. A total of 379 health professionals were selected using multistage stratified sampling technique. Self-administered questionnaire was used to collect data. Binary logistic regression model was used to see association between outcome and independent variables. Results This study found 74.9%, 84.2% and 68.9% prevalence of adequate knowledge, positive attitude and good practice respectively. Working in comprehensive specialized hospital (AOR = 4.46, 95% CI = 1.46-13.62).having MSC degree (AOR = 10.26, 95% CI = 2.27-46.44),

Research paper thumbnail of Assessment of knowledge, attitude and practice toward COVID-19 and associated factors among health care workers in Silte Zone, Southern Ethiopia

PLOS ONE

Introduction COVID-19 is a pandemic respiratory disease caused by the highly contagious novel cor... more Introduction COVID-19 is a pandemic respiratory disease caused by the highly contagious novel coronavirus (SARS-CoV 2). The disease is now quickly spreading around the world, resulting in ongoing coronavirus pandemic. Healthcare workers are more susceptible to COVID-19 infection than the general population due to frequent contact with infected individuals. Objective This study was aimed to assess knowledge, attitude and practice towards COVID-19 and associated factors among health care workers. Methods Facility-based cross-sectional study design was conducted among health care workers in Silte Zone. A total of 379 health professionals were selected using multistage stratified sampling technique. Self-administered questionnaire was used to collect data. Binary logistic regression model was used to see association between outcome and independent variables. Results This study found 74.9%, 84.2% and 68.9% prevalence of adequate knowledge, positive attitude and good practice respectively...

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