Nobody downloaded yet

Statistics Assignment 4 - Speech or Presentation Example

Comments (0) Cite this document
Summary
A research is usually meant to study the characteristics of a population. However, the size of a population in most cases is so large that it is not possible to gather all the relevant information on all population units. Rather it is a much more convenient option to collect…
Download full paperFile format: .doc, available for editing
GRAB THE BEST PAPER98.8% of users find it useful
Statistics Assignment 4
Read TextPreview

Extract of sample "Statistics Assignment 4"

Download file to see previous pages , stratified sampling implies the same research when conducted after dividing the total sample into various strata and then considering each individual result as one of the inherent characteristics specific to each stratum.
3. Sampling error occurs when the researcher tries to conclude about the population characteristics after studying the significance of the outcomes on carrying out the tests on the samples from the population.
4. A reliability check is that which finds out if the results so obtained from conducting a study on a sample drawn from a population remains the same when a within-sample test is conducted. On the other hand, validity tests are meant to find out if the topic or subject of research has really been adhered to while gathering information to carry on with the research ...Download file to see next pagesRead More
Cite this document
  • APA
  • MLA
  • CHICAGO
(“Statistics Assignment 4 Speech or Presentation Example | Topics and Well Written Essays - 750 words”, n.d.)
Statistics Assignment 4 Speech or Presentation Example | Topics and Well Written Essays - 750 words. Retrieved from https://studentshare.org/miscellaneous/1557741-statistics-assignment-4
(Statistics Assignment 4 Speech or Presentation Example | Topics and Well Written Essays - 750 Words)
Statistics Assignment 4 Speech or Presentation Example | Topics and Well Written Essays - 750 Words. https://studentshare.org/miscellaneous/1557741-statistics-assignment-4.
“Statistics Assignment 4 Speech or Presentation Example | Topics and Well Written Essays - 750 Words”, n.d. https://studentshare.org/miscellaneous/1557741-statistics-assignment-4.
  • Cited: 0 times
Comments (0)
Click to create a comment or rate a document

CHECK THESE SAMPLES OF Statistics Assignment 4

Statistics

...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

...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

Statistics

...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

Descriptive statistics/inferential statistics

...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

Statistics

...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

Statistics

...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

Statistics

... 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

Statistics

...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

Statistics

...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

Statistics

..., 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
sponsored ads
We use cookies to create the best experience for you. Keep on browsing if you are OK with that, or find out how to manage cookies.

Let us find you another Speech or Presentation on topic Statistics Assignment 4 for FREE!

Contact Us