## CHECK THESE SAMPLES OF Statistics EXAM

...?Because there are 50 numbers, we can divide these numbers into groups of 10 (5 groups). Next we subtract the lowest number from the highest number (76 — 16 = 60). After this, we will divide the difference by the number of groups that we came up with (60 / 5 = 12). Once we get the class width (12), we add it to the lowest number in order to get the lowest class limit (16 + 12 = 28). If we keep on repeating this step, we can determine all the appropriate class limits (28 + 12 = 40, 40 + 12 = 52, 52 + 12 = 64, and 64 + 12 = 76). Because these are the maximum limits, we have to subtract 1 from each class limit (16 + 12 — 1 = 27, 28 + 12 — 1 = 39, 40 + 12 — 1 = 51, 52 + 12 — 1 = 63). Now that we have worked this out, we can create... there are 50 ...

1 Pages(250 words)Math Problem

...) explores how adolescent depression influences the course of angry and dysphoric adolescent on their emotional behaviors within the parent-adolescent interactions. The study consisted of 72 depressed and 69 of non-depressed youths, in which they were recorded during positive and conflictual engagement with their parents. The **statistical** data analysis method used was a second-to-second binary data, which were changed to data showing the incidences of a particular affective behavior within a perpetual 60s throughout the interaction, which was aimed at depicting the emotional behavior incidents. Sheeber et al. (2012) supports theory that depression is directly connected to the increased occasions of dysphotic behavior in...

4 Pages(1000 words)Essay

...efforts I had a happy ending of my graduation with GPA 3.88.
Trailing through path of knowledge, being a competent person I grabbed the awards and honors of AP **Statistics** (**Exam** Score, 5), I had also been in Kentucky All-State SSA Choir, and had the honor of being an active member of The Regional Science Fair. Successfully secured the position of officer at Chemistry Club (allows senior executives to express their views and make relations in an environment that is biased).
With efforts towards studies I had not forgotten the community services and served at The Louisville Saehan Church which uncovered my leadership qualities so in the leadership terms I had the honor of being President of church youth...

2 Pages(500 words)Admission/Application Essay

...1. (a) (i) Stem-and-leaf display: Stem Leaves 2 5 6 7 8 8 3 2 3 5 7 8 9 4 3 7 7 5 8 6 7 9 6 Or Stem Leaves 2 0 4 5 7 8 8 3 2 3 4 6 8 9 4 2 6 7
5
0 8
6
6
9
5
(ii) As can be seen from the diagram, most of the prices are concentrated in the 2 and 3 stems, with decreasing number of leaves in 4, 5 stems and only one leaf at 6 and 9 stems. The shape of the distribution is close to binomial distribution.
(iii) The revised mean is(409*20-958)/19=380
(iv) Median for 20 house prices is (366+384)/2=377. The revised median for 19 houses is 366
(v) Q1=(283+285)/2=284
Q3=(467+472)/2=469.5
IQR=185.5
It would be better to measure spread with IQR instead of standard deviation because, unlike the standard deviation, it is not affected by values... (a) (i)...

4 Pages(1000 words)Essay

...on this **exam** pertain to the Malls of the Thump McDonald Property group. Thump McDonald, often referred to as “The McDonald”, commissioned his apprentices to look at various **statistics** to determine the efficiency of his operations.
PROBLEM 1 (12 points):
For each of the following claims mention what kind of test should be used (one-tail, two-tail) and set up the null and alternate hypothesis.
a) The Pastry shop claims that its chocolate cookies have at least 60% chocolate per cookie.
One – Tail; H0: > 60% chocolate versus H1: < 60% chocolate
b) The 87Cents Store claims that their daily profit is at least $1,000.
One – Tail; H0: > $1000 profit versus H1: < $1000 profit
c) The Feather baggage...

7 Pages(1750 words)Speech or Presentation

...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

...of -1 from the table= .159
=0.159*200=31.8= 31 students
5. The table below shows Psychology **exam** scores, **Statistics** **Exam** scores, and IQ scores for a random sample of students. What can you observe in the relationship between IQ and psychology, psychology and **statistics**, and IQ and **statistics**? Using a web-calculator, obtain the Pearson’s r and coefficient of determination for the following relationships.
a. Between the IQ and psychology scores
r= 0.5923
Online calculator: http://www.meta-numerics.net/Samples/BivariateSampleCalculator.aspx
R2 = 0.3508
Online calculator: http://easycalculation.com/**statistics**/r-squared.php
b....

1 Pages(250 words)Speech or Presentation

..., particularly in the U.S. This research paper therefore aims at establishing the relationships between the changes in the GDP and house sales. In determining such relationships, this research paper will focus on literature material and the **statistical** inferences.
Resources
The link between GDP and the change in the sales of the housing and real estate units is evidenced by the data on the performance if these two variable over time. The data from the department of labor and economics show that these two variables have a strong positive relationship. This is evidenced by the great global economic and financial crisis of 2009 that negatively affected the housing and real estate sector through the housing bubbles. These...

2 Pages(500 words)Research Paper

...**Statistics** Introduction Carbon dioxide’s concentration in the atmosphere is changing from time to time across the years. There are a number of evidences which show that the concentration of atmospheric carbon dioxide has been steady increasing globally. This rise is attributed to increasing human and industrial activities across the globe. Unlike moisture in the atmosphere, carbon dioxide is mixed well in the atmosphere thus its circle can go unnoticed due to relatively slow changes. The level or rather the amount of carbon dioxide in the atmosphere is measured easily because it is a greenhouse gas; causing surface warming.
Therefore, this paper presents carbon dioxide data and a presentation of its trend over the...

4 Pages(1000 words)Essay

...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