Statistical survey

using the one-way ANOVA, is the following: Does the frequency in days of the week make a difference in having an ideal body weight? The one-way ANOVA is the most appropriate statistical test as the question identifies an independent variable that can have up to a maximum of 7 groups, to represent the days of the week. The statistical notation is the following: F = MSbet MSwith (Sukal, 2013, Formula 6.4) The null hypothesis would be the following: The frequency in the days of the week does…

Chapter 13 looked at homicide and physical assault. When it comes to the scope of exposure it was stated in the book that “comparing rates of physical assaults across nations is difficult because legal definitions of crime differ. In addition, there is limited access information about physical assaults that are not reported to police. If the legal definition of physical assault differs in two countries or if the proportion of cases reported to police in each country differs, then comparisons…

collections: Uniform Crime Report (UCR), The National Incident-Based Reporting System (NIBRS), and The National Crime Victimization Survey (NCVS). The first choice was easy to rule out. The NCVS was simply the most unreliable all though it gave the most information, it simply is not the most reliable. According to Siegel et al. (2015), a “weakness of self-report surveys are that they rely on the honesty of offenders…

Numerous research studies have been conducted by the CII and also other FEP researchers with regards to the implementation and critical importance of front end planning in project success. But there are very few studies that provide quantifiable statistical data supporting FEP adoption. CII has published data analysis for FEP data which analyses the relationship between project PDRI scores and scope definition, and project cost, schedule and change performance. Even though the it is evident that…

(2015). Module 8 – Sampling and Statistical Inference [Critical Thinking file named abuse.xls]. In MTH410 – Quantitative business analysis. Greenwood Village, CO; Author Table 6 Hypothesis Test – p-value approach to determine proportion of all Rocky University students who answered NO to participating in any type of substance abuse. Note: Data was compiled from Colorado State University - Global Campus. (2015). Module 8 – Sampling and Statistical Inference [Critical Thinking file named…

a larger population. The survey was also distributed using email databases across college campuses, and shared with students in the nutrition/food science class. A few of these methods used relied on convenience sampling. This could be a fault of the survey, although it was not the primary method applied. The survey was conveniently distributed to one of the researchers class, which also happened to be a nutrition class, perhaps skewing the data, seeing the survey relied heavily on menu…

The third problem was chosen to demonstrate the use of a method described in Rand Wilcox’s book [4] and implemented as a Minitab® macro in the diskette accompanying the book [5]. In class discussions lead to my interest in Yuen’s test of trimmed means which is appropriate for situations when there is evidence of non-normality and heteroscedasticity [4]. If there is no violation of normality but there’s is heteroscedasticity, the Yuen’s test without trimming, which is actually the classical…

1. a. The data set consist of 44 female and 53 males. b. There are 21 people under the age range of 13-35, which account for 21.6% of the total 97 in the sample. c. The mean level of the hour spent in the office during week 2 is 47.47 hours, with the standard deviation of 17.06. The distribution is slightly negative skew (-0.237), although in an acceptable range suggest that slightly more samples spend more hours in office than the average. The distribution’s value for kurtosis (-1.005)…

Introduction Antibiotics were initially thought of as a superior drug that could kill many bacterial diseases. Prior to antibiotics, it was hard for anyone to fight a bacteria. However, bacteria are very changing and have begun being able to gain resistance against antibiotics due to overuse, not strong enough dosage of antibiotics, or improper use. By determining the resistance and cross-resistance, one may determine the the relative ability for bacteria to gain resistance to antibiotics. We…

numbers of teachers and students took the pretest and posttest surveys. More teachers took the survey during the posttest whereas fewer students took the survey. Therefore, not everyone who participated actually took the survey which may have undermined the study’s internal as well as external validity. Students who were not present may have influenced the results had they been able to complete the final survey. In addition, the use of surveys may not have provided a completely accurate…