CHECK THESE SAMPLES OF Statistics Assignment
..., it is the decision of the finance manager and the CEO to determine whether such type of activities really help to enhance the company’s performance. Importantly, from the analysis, it can be understood that the company would do well even if it postpones drawing money from the bank. The analysis utilizes various statistical tools to determine the normal probability distribution as well as find the various probabilities asked in the questions. Introduction If the organization having already achieved sizable success in a particular market or captured the majority market share there, they will venture into new markets. On the other hand, if the currently operating market becomes saturated with heavy competition, then also...
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... ? Read the...
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
...due Statistics Assignment Question Summary Statistics Life Expectancy Mean 76.0752 Standard Error 0.257757 Median 76.38245
Mode
#N/A
Standard Deviation
1.840753
Sample Variance
3.388371
Kurtosis
-0.55827
Skewness
-0.66657
Range
6.808189
Minimum
71.86361
Maximum
78.6718
Sum
3879.835
Count
51
From the summary statistics, the data is normally distributed with the mean approximately equal the median. (76.0752 ≈ 76.38245). Moreover, the skewness is not statistically different from zero.
Question 2
Life expected can be termed as directly influenced by the average income. The scatter diagram shows that higher income earners have higher life expectancy. Note also that the...
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
