In this paper, the importance and the application of probability and statistics tools to a real world problem will be considered. My goal is to investigate if the hours that students studied and the grade they earned on a test are related factors. The sample provided contains the data of 30 students. Their hours of study and exam scores are recorded and given in the spreadsheet. In order to determine the strength of the association, I will use Pearson’s correlation coefficient. The correlation reflects the statistical association between random variables. If the variables are related, a change in ...
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1. The mean of the bottling Company Case Study is 475.62(sum of all ounces of the bottles that were randomly selected on all three shifts)/30(amount of bottles that were randomly selected on all three shifts)=15.85(mean/average of ounces). When evaluating the median of an even data set the two middle numbers are added together and the mean of those two numbers is taken. In this case, the median of the Bottling company case study is 15.98 + 16.00 = 31.98/2 = 15.49. the median is 15.49.
The standard deviation is calculated as
σ = √[ ∑(x-mean)^2 / N ] σ = √13.115/29 = √.4522 = 0.6724581771381771 2. N=30, x = 15.85, s= ...
Final Project
Final Project
Introduction
Statistical analysis is an integral part of the clinical trial and nursing. The purpose of this paper is to demonstrate the understanding the essence of the various methods of statistical processing of medical data, without going into details of mathematical calculations. We consider the most useful and popular types of analysis of the nursing, clinical and experimental medicine.
There are a number of indicators are included in the term of "descriptive statistics". They characterize the sample as a whole. Each researcher knows such concept as average (mean) value, which is calculated by dividing the sum of the ...
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In consolidation test of soil parameters of a sample, the settlement caused by applying an increased load to a soil sample is measured. These measurements involve the amount of soil that will decompress or compress on an application of a load.
Materials
Sieve nest Sieve brushes Tamper Consolidation device Displacement indicator Caliper Drying oven Moisture Procedure A soil sample of size finer than # 40 sieve is selected to be used in the experiment. The soil moisture content of the is first determined using a representative quantity and the mass of the remaining sample (Wd) which will be placed in the ...
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