## CHECK THESE SAMPLES OF Statistics Assignment 4

...of the coefficient of variation. Customer Mean SD CV UK $1.41/? $0.041/? 2.91% Japan $0.00904/? $0.00045/? 5% Canada $0.824/CAD $0.0342/CAD 4.15% South Africa $.0.0211/R $.0.00083/R 3.93% Mean CV **4**% (approx) From this analysis, it can be found out that the highest risk involved is with Japan and the lowest risk is with UK. Since the probability involved is only 0.04 (based on the average CV of **4**%) the probability that the bank will incur a loss is only 0.04. The bank defines its Value-at-Risk as the loss that occurs at the 5th percentile of the uncertain revenue (5% left tail of the distribution). On those lines, the bank’s Value-at-Risk as well as the bank’s expected profit can be found out....

9 Pages(2250 words)Assignment

...**Statistics** Problems #8-14 (a) The linearity assumption says that there is no pattern in the residuals as we move from left to right. However, there is a bend, starting high on the left, dropping down in the middle of the plot, and rising again on the right. Therefore, assumption that the errors have constant variance (i.e., they are homoscedastic) is violated.
(b) There is a Funnel-In-Pattern (decreasing residual variance) as we move from left to right. Therefore, assumption that the errors have constant variance is violated.
(c) There is no pattern in the residuals as we move from left to right. A random pattern like this is consistent with the hypothesis of homoscedasticity (constant variance).
#8-28 Duration = 91.033...

3 Pages(750 words)Assignment

...13-6) a) This an observational study. The reason for this is that the researchers don’t assigned choices, they simply observed users. b) The variableis contribution for coffee.
c) Increased significantly means in a **statistical** sense that there is very less probability (Type I error) that the average contribution did not increase above the well-stablished standard.
13-16)
a) It was an observational study. Because the researchers did not assign women to live near the site of industrial explosion, they simply observed (identified) women who lived near the site of industrial explosion and were under age 40 at that time.
b) It was retrospective study. Because researchers identified subjects who lived near the site of...

2 Pages(500 words)Assignment

...Survey Research Select a quantitative article that is related to your research question in which the results of some type of a survey are reported. Examine the demographic **statistics** and the means and standard deviations for items on the survey. What do they tell you about the sample? Discuss the ethical issues related to gathering demographic and survey data.
The study chosen was the Williams et. al. (1998) study wherein the researchers attempted to evaluate the extent to which patient literacy was related to their knowledge of asthma and effective use of the MDI.
The study presents demographic **statistics** predominantly in the form of frequencies and percentages, and some in the form of means and S.D.’s. The data shows us... . Also, there...

2 Pages(500 words)Assignment

...My Experience in **Statistics** During the café discussion week one, the was introduced to the **statistical** skills that were supposed to be learnt. Among them, students taking the course were expected to calculate and interpret descriptive and inferential **statistics**, and apply **statistical** concepts to research problems and to everyday situations. In deed, my grasp of the content taught fascinated me.
Overall, the course was very interesting. I found it motivating using the **statistics** disc to analyze data. My favorites were the MSL assignments, hypothesis testing, descriptive **statistics**, and the normal distribution because I conveniently...

1 Pages(250 words)Assignment

...Introduction **Statistics** is a useful tool in process evaluation more especially in instances where data samples are necessary in analysis. In this report, data samples for plastic knob sizes are gathered for analysis. The acceptable range for knob sizes is given as,
0.137" ≤ acceptable ≤ 0.143"
Materials and Methods
Although raw data is presented in the study, the data was grouped using 0.002 range and their respective frequencies identified. The resulting grouped data was then subjected to **statistical** analysis. Manual calculations (using excel) based on formulas was done while excel analysis tool was also used to generate descriptive **statistics** for the raw data. The result was then...

1 Pages(250 words)Assignment

... A study on compromised results of bias sampling The study which the result were biased in regard to sampling and data gathering sleep habits and obesity. The study mainly focused on the sleep habits and obesity.
The source of the bias was utilization of the simple random sample from the underlying patient population in constructing sampling frame of the corresponding eligible patient.
The bias did not take into account data gathering costs, underlying sample sizes and corresponding **statistical** power in the analysis. Compromises were realized in the identification of the patients to be recruited for certain cost in order to achieve specified sample size.
The flawed findings resulted to unscheduled drop in patients every day... ...

2 Pages(500 words)Assignment

...Maximum
82.06598
Sum
3899.669
Count
51
Normally distributed with a skewness not **statistically** different from zero. The total count of 51 implies that the whites dominate many states, given that the other races have a lesser counts.
Question **4**
African American
Higher income does not result to high life expectancy.
Asian American
Life expectancy is generally high; income does not seem to influence life expectancy.
Latino
Latinos income is fairly lower than the other races; however, life expectancy is similar to the rest; evenly distributed among income levels.
Native American
An increase income increases life expectancy. This contradicting result might be attributed to the small sample size....

2 Pages(500 words)Assignment

...Program Supervisor 28 November 28, **Statistics** Most Important Concept Learnt over the Difference in suitability of the mean, the mode, and the median for different types of data is the most interesting concept that I have learnt over the course. I have leant that the concepts should not just be used simultaneously but that a researcher must understand reliability of each of the **statistics** before application. The mode, for example, is suitable for describing data on a nominal scale while for ordinal data; either the mode or the median should be used. The mean is however more suitable for variables on a ratio or interval scale (Hanna and Dempster n.p.). For ratio or interval scale data, the median is...

3 Pages(750 words)Assignment

..., a condition that is difficult to meet. Random sample is not an appropriate technique to use while dealing with a very small sample size because the margin of error is usually wide, leading to a wrong conclusion (Medhi 2012).The above problems can be overcome through using an average sample size of the population since it will limit the margin error incurred during random sampling.
Reference
Kothari, C. R. (2011). Research methodology: Methods & techniques. New Delhi: New Age International (P) Ltd.
Medhi, J. (2012). **Statistical** methods: An introductory text. New York: Wiley.... sampling affiliation Introduction Random sampling is a method whereby every member of a population has an equal and independent chance to be selected in any study...

1 Pages(250 words)Assignment