Statistics in Business QNT/351 Statistics in business The purpose of this essay is to examine the purpose of statistics in business. Our text, Lind (2011) defines statistics as “The science of collecting, organizing, presenting, analyzing, and interpreting data to assist in making more effective decisions” (p.5). Types and levels of statistics There are two major types of statistics, descriptive and inferential. Descriptive statistics is defined by Lind (2011) as “methods
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The Problem of Auto-Correlation in Parasitology Cherice Moore ITT Technical Institute GE257 12/17/2014 Parasitology is a branch of biology that deals with the study of parasites, their hosts, and the relationship between them. Parasitologists try to get an understanding of the many various factors that regulate the outcome of infections, and how these variables can actually adjust to a different intervention or some other type of external variation. Since infections are not simple, and have
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deficiencies among lower-performing students in mathematics can have negative consequences for individuals’ labour-market and earnings prospects and for their capacity to participate fully in society.2 Results from the Youth in Transition Survey, by Statistics Canada, show a positive relationship between the
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HST III R&D Stomata Lab Report Beginning the lab with our null hypothesis: there is no difference in stomatal density of Prunus Peraca leaves in which both were selected from the same section of the tree, yet one was on a higher branch and one was on a lower branch; my lab partner, Jaylann Rawls, and I quickly set up our lab to figure out if we can agree or disagree with this statement. We chose the leaves from a peach tree in my garden, and used clear nail polish, tape, slides, and a microscope
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BSC1005 – Dr. Ayala – Assignment #1 – 5points Carefully study the advertisement for ‘Metabo-Herb’ and answer the questions that follow. SCIENTIFIC PROOF THAT METABO-HERB CAUSES YOUR TOMATOES TO GROW FASTER THAN “SUPER GROW”!!!! Decades of scientific research has resulted in the development of a new plant fertilizer that promotes plant growth better than any other product on the market-including 'Super Grow.' 'Metabo-Herb' is a clinically formulated fertilizer that is scientifically proven to
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Assignment 1: Bottling Company Case Study Imagine you are a manager at a major bottling company. Customers have begun to complain that the bottles of the brand of soda produced in your company contain less than the advertised sixteen (16) ounces of product. Your boss wants to solve the problem at hand and has asked you to investigate. You have your employees pull thirty (30) bottles off the line at random from all the shifts at the bottling plant. You ask your employees to measure the amount of
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Hypothesis Testing PSY/315 Jenna Griffin Amber Lupo Suppose that a doctor claims that 21 year olds have an average body temperature that is higher than the commonly accepted average human temperature of 98.6 degrees Fahrenheit. A simple random statistical sample of 25 people, each of age 21, is selected. The average temperature of the 21 year olds is found to be 98.9 degrees, with standard deviation of 0.6 degrees. The claim
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contact me. 1. Report the sample you selected and the question that was explored in the study. The sample selected here was ‘hours of study’ (x-variable) The question explored was: what kind of dependence does hours of study have on student’s exam score. 2. Report the r2 linear correlation coefficient and the linear regression equation produced in the Excel spreadsheet. From the excel plot, linear correlation coefficient, r2 or R2 = 0.785 and the linear regression equation is: y = 1.5608x
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Grove, S. K. (2007). Statistics for health care research: A practical workbook. Edinburgh: Elsevier Saunders. Topic 1 DQ 1: How can graphics and/or statistics be used to misrepresent data? Where have you seen this done? Statistics are used everywhere, every day to represent a multitude of data, or study sample. Sample characteristics are the traits that depict the study sample and can be portrayed in either some type of table or in an article (Grove, 2007). “Descriptive statistics are used to generate
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2014 and that of 13-week Treasury Bill, as well as Fama French Benchmark Factors (Rm-Rf, SMB, HML) of the same time period. The data description is showed in Table 2, I then tested properties of those variables. 1. Normal Distribution The test statistics of histogram presented in Table 2 follows a chi-square distribution with 9 degrees of freedom. The critical value at 5% significance level is 23.6. So the results show that Rm-Rf and SMB are normally distributed; while RACN-Rf and HML are not normally
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