Estimation and Inferential Statistics

Sahu, Pradip Kumar; Pal, Santi Ranjan; Das, Ajit Kumar

doi:10.1007/978-81-322-2514-0

Cited by 18 publications

(11 citation statements)

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“…Blocked Call Rate Analysis First, a correlation test is performed on the BCR results for both rainy and dry seasons to ascertain their nature of relationship existing between them. The correlation test is denoted with ‫ݎ‬ ௦ ranges from -1 to 1 [19]. The result (r s =0.453) shows there is a slight positive relationship between the BCR for both rainy and dry seasons, such that a rise in rainy season BCR leads to a rise in dry season BCR: μ ௬ோ = 12.8955 , μ ௗ௬ோ = 8.7573 .…”

Section: Results and Analysismentioning

confidence: 99%

Experimental Study on the Impact of Weather Conditions on Wide Code Division Multiple Access Signals in Nigeria

Eli-Chukwu¹,

Onoh

2019

Eng. Technol. Appl. Sci. Res.

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In cellular network activities, before a site is integrated it is expected that each cell of the site meets the Nigerian Communication Commission (NCC) standard of ≥98% for both service accessibility and call completion rate which in turn depicts a ≤2% in both blocked call rate (BCR) and dropped call rate (DCR). It is suggested that weather conditions have a very strong negative effect on the performance of wideband code division multiple access (WCDMA) network as it could lead to signal attenuation or change the polarization. In this paper, we study the impact of weather conditions on WCDMA network in Nigeria. To achieve this, network samples (log-files) were collected weekly during a driving test in Enugu State Nigeria for a period of five years for both rainy and dry seasons, in which blocked and dropped calls were extracted. Results show that during adverse weather conditions, BCR and DCR rise greater than 8% and 4% respectively. Although with a slight relationship between the weather conditions, the weather condition during the dry season has a better-blocked call rate of 8.76% in comparison with the rainy season with 12.89%. Calls tend to drop more during the dry season. From the outcome of the experiment, a model was developed for predicting an unknown network call statistics variables.

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Section: Results and Analysismentioning

confidence: 99%

Experimental Study on the Impact of Weather Conditions on Wide Code Division Multiple Access Signals in Nigeria

Eli-Chukwu¹,

Onoh

2019

Eng. Technol. Appl. Sci. Res.

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“…It can be concluded that there is a relationship between the mathematical position and learning outcomes of junior high school students with a positive R value of 0.697. If the sig value <0.05, there is a relationship [34]. Mathematical disposition is one of the general mathematical skills and basic social mathematical attitudes that require the attention of teachers to perform their learning.…”

Section: Resultsmentioning

confidence: 99%

The relationship between students’ mathematical disposition and their learning outcomes

et al. 2021

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The affective aspects must be owned by students in a lesson, where the affective aspects will have a relationship with the cognitive aspects of a student, therefore this study aimed to determine whether there is a relationship between students 'mathematical dispositions and students' mathematics learning outcomes. Using a mixed method and a sequential explanatory plan, the research was undertaken by first collecting quantitative data and then continuing to collect qualitative data. Where, the sample count in this study was 413 students from junior secondary schools 18 in Jambi City, Indonesia who used a total sampling technique. Data were then analyzed with the help of SPSS 21 application to find descriptive statistics in the form of mean, min, max, and category as well as inferential statistics using Pearson Product Moment. The results obtained in this study dominate both the mathematical disposition of pupils and the learning outcomes of pupils in mathematics. This was reinforced by the existence of a relationship between mathematical disposition and student learning outcomes in mathematics which is indicated by the obtained sig 0.05. This means that the mathematical disposition of students which includes the affective aspect of students has a relationship with the cognitive aspect, by having a good affective aspect, the cognitive aspects of the student are also good.

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“…In order to evaluate the native S. californicus plant in the removal of copper, lead, zinc and iron, data were organized and the design was used entirely at random. When the difference between the treatments was found, the Tukey [7] mean comparison test was used at a significance level of 0.05 with the following linear additive model:…”

Section: Discussionmentioning

confidence: 99%

Capacity of Absorption and Removal of Heavy Metals from <i>Scirpus californicus</i> and Its Potential Use in the Remediation of Polluted Aquatic Environment

Cuadrado¹,

Custodio²,

Espinoza³

et al. 2019

OJMS

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The research aimed to evaluate the absorption and removal capacity of Cu, Pb, Fe and Zn from Scirpus californicus for potential use in the remediation of polluted aquatic environments. Initially, Scirpus californicus plants were conditioned in 1.5 liters of 10 ppm Cu solution at a pH of 2.3 as well as Pb, Fe and Zn. Subsequently, the concentration of heavy metals in the root-rhizome, submerged stem and aerial stem was determined; the solution and pH were also analyzed. The greatest capacity of absorption and accumulation occurred in the root-rhizome reaching values for Cu of 491.84, Pb of 739.43, Zn of 830.71 and Fe of 2624.72 mg/kg dry followed by the submerged stem and low values for the aerial stem. The removal efficiency of Cu from the solution was 52.10%, Pb 53.50%, Fe 48.00% and Zn 50.20%. It is concluded that the contact time has a significant effect on the absorption and removal capacity of the metals under study.

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Estimation and Inferential Statistics

Cited by 18 publications

References 0 publications

Experimental Study on the Impact of Weather Conditions on Wide Code Division Multiple Access Signals in Nigeria

Experimental Study on the Impact of Weather Conditions on Wide Code Division Multiple Access Signals in Nigeria

The relationship between students’ mathematical disposition and their learning outcomes

Capacity of Absorption and Removal of Heavy Metals from <i>Scirpus californicus</i> and Its Potential Use in the Remediation of Polluted Aquatic Environment

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Estimation and Inferential Statistics

Cited by 18 publications

References 0 publications

Experimental Study on the Impact of Weather Conditions on Wide Code Division Multiple Access Signals in Nigeria

Experimental Study on the Impact of Weather Conditions on Wide Code Division Multiple Access Signals in Nigeria

The relationship between students’ mathematical disposition and their learning outcomes

Capacity of Absorption and Removal of Heavy Metals from &lt;i&gt;Scirpus californicus&lt;/i&gt; and Its Potential Use in the Remediation of Polluted Aquatic Environment

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Capacity of Absorption and Removal of Heavy Metals from <i>Scirpus californicus</i> and Its Potential Use in the Remediation of Polluted Aquatic Environment