1.    (3 points) On an exam with a mean of M = 82, you obtain a score of X =86.

a.    Would you prefer a standard deviation of s = 2 or s = 10? (Hint: Sketch each distribution and find the location of your score.)

b.    If your score were X = 78, would you prefer s = 2 or s = 10? Explain your answer.

2.  (3 points)   A student was asked to compute the mean and standard deviation for the following sample of n = 5 scores: 81, 87, 89, 86, and 87.  To simplify the arithmetic, the student first subtracted 80 points from each score to obtain a new sample consisting of 1, 7, 9, 6, and 7.  The mean and standard deviation for the new sample were then calculated to be M = 6 and x = 3.  What are the values of the mean and standard deviation for the original sample?

3.  (3 points)   

Calculate SS, variance, and standard deviation for the following population of N = 7 scores: 8, 1, 4, 3, 5, 3, 4. (Note: The definitional formula works well with these scores.)

4.  (3 points) For the following population of N = 6 scores: 5, 0, 9, 3, 8, 5

a.    Sketch a histogram showing the population distribution.

a.    Locate the value of the population mean in your sketch, and make an estimate of the standard deviation (as done in Example, 4.2).

b.    Compute SS, variance, and standard deviation for the population.  (How well does your estimate compare with the actual value of σ?)

5.  (3 points) A distribution has a standard deviation of σ = 12.  Find the z-score for each of the following locations in the distribution.

a.    Above the mean by 3 points.   

b.    Above the mean by 12 points.  

c.    Below the mean by 24 points.  

d.    Below the mean by 18 points.   

6.  (5 points) For a population with a mean of µ = 100 and a standard deviation of 12

a.    Find the z-score for each of the following X values.

X = 106    X = 115    X = 130   

X = 91     

X = 88     

X = 64     

b.    Find the score (X value) that corresponds to each of the following z-scores.

z = – 1.00   

z = – 0.50   

z = 2.00      z = 0.75     

z = 1.50     

z = – 1.25   

7.  (3 points) Find the z-score corresponding to a score of X = 60 for each of the following distributions.

a. µ = 50 and σ = 20                 

b. µ = 50 and σ = 10                 

c. µ = 50 and σ = 5                   

d. µ = 50 and σ = 2                    

8.  (1 point) A score that is 6 points below the mean corresponds to a z-score of z = – 0.50.  What is the population standard deviation?

9.  (3 points) For each of the following, identify the exam score that should lead to the better grade.  In each case, explain your answer.

a.    A score of X = 56, on an exam with µ = 50 and σ = 4, or a score of X = 60 on an exam with µ = 50 and σ = 20.

b.    A score of X = 40, on an exam with µ = 45 and σ = 2, or a score of X = 60 on an exam with µ = 70 and σ = 20.

c.    A score of X = 62, on an exam with µ = 50 and σ = 8, or a score of X = 23 on an an exam with µ = 20 and σ = 2.

1.  For the following set of scores, find the value of each expression.  (5 points)

X
-4
-2
0
-1
-1

2.  Construct a frequency distribution table for= the following set of scores.  Include columns for proportion and percentage in your table. (5 points)

Scores: 5, 7, 8, 4, 7, 9, 6, 6, 5, 3, 9, 6, 4, 7, 7, 8, 6, 7, 8, 5

3.  The following scores are the ages for a random sample of n = 30 drivers who were issued speeding tickets in New York during 2008.  Determine the best interval width and place the scores in a grouped frequency distribution table.  From looking at your= table, does in appear the tickets are issued equally across age groups? (5= points)

17,  30,  45,  20,  39,  53,28,  19

24,  21,  34,  38,  22,  29, 64

22,  44,  36,  16,  56,  20, 23,  58

32,  25,  28,  22,  51,  26, 43

No the tickets are not distributed equally among all age groups.

4.  Find the mean, median, and mode for the scores in the following frequency distribution table. (5 points)

_____

  X       f      f*X       cf

10    1      10      15

  9    2      18      14

  8    3      24      12

  7    3      21      9

  6    4      24      6

  5    2      10      2

English 300OL
“Confession” & “Small Frogs” – Free Verse Poetry Analysis

As stated in our How to Analyze Poetry handout, at the turn of the 20th Century, artists demanded more freedom of expression; in a poetic sense, Modern and Contemporary Poets began to structure language as it suited their own needs. Free Verse poetry lacks a traditional system of measure; however, it is not without a certain sense of form and strategy. Poets began to choose line beginnings and endings to create specific meaning and feeling. Stanza breaks could serve as a device to create tension or to create a natural pause. Poets began to build toward the last line — to move us, startle us, give us sudden insight. Subjectivity increased, and by the 1950s and 60s, Beat, Zen, and Confessionalist Poets turned to a style of emotional autobiography, shifting the role of audience from objective observer to personal confidant.

Consider how style and form creates meaning in this week’s free-verse poems “Confession,” & “Small Frogs”— both poems can be found on our How to Analyze Poetry handout.

For this forum, please consider what makes these poems “contemporary.” Are the themes contemporary? The ability for a poet to express these particular feelings and issues? The format of the poems?  You may refer to the Basic Questions for Rhetorical Analysis from our handout to assist you in your analysis.

Please post an initial response of 500 words.  Kindly post a 3-4 sentence response to five (5) of your peers.  Please be specific, thorough, and POSITIVE in your responses. Make sure you write about both poems!!!

Good luck and have fun!

Fill the blank:

The following data were collected on the study of the relationship between a company’s retail sales and advertising dollars:

a.             Obtain a linear regression line for the data. (Round your answer to 2 decimal places, the tolerance is +/-0.01.)
Retail Sales = _______ + _________ (advertising)

b.            Compute a correlation coefficient and determine the strength of the linear relationship. (Round your answer to 2 decimal places, the tolerance is +/-0.01.)
Correlation coefficient is ______________. It indicates __________(No, a moderate positive, or a strong positive) linear relationship. (Use not rounded amounts to answer this question.)

c.             Using the linear regression equation, develop a forecast of retail sales for advertising dollars of $40,108. (Round your answer to 2 decimal places, the tolerance is +/-0.01. Do not round intermediate results used to achieve this answer.)
Forecast = ________________$

1. Assignment 1.1: Conflicting Viewpoints Essay – Part I
   Due Week 2 and worth 30 points

   When looking for information about a particular issue, how often do you try to resist biases toward your own point of view? This assignment asks you to engage in this aspect of critical thinking by playing the “Believing Game.” The Believing Game is about making the effort to “believe” – or at least consider – the reasons for an opposing view on an issue.

   You will first read a book excerpt about critical thinking processes: “The Believing Game and How to Make Conflicting Opinions More Fruitful” at http://www.procon.org/sourcefiles/believinggame.pdf.

   Part I – Prewriting: Follow the instructions below for this prewriting activity.  Use complete sentences and adhere to standard rules of English grammar, punctuation, mechanics, and spelling.
   1. Select one (1) of the approved topics from the www.procon.org Website and state your position on the issue.
   2. From the Procon.org Website, identify three (3) premises (reasons) listed under either the Pro or Con section – whichever section opposes your position.
   3. For each of the three (3) premises (reasons) that oppose your position on the issue, answer these “believing” questions suggested by Elbow:

   1. What’s interesting or helpful about this view?
   2. What would I notice if I believed this view?
   3. In what sense or under what conditions might this idea be true?”

   The paper should follow guidelines for clear and organized writing:

   • Include an introductory paragraph and concluding paragraph.
   • Address main ideas in body paragraphs with a topic sentence and supporting sentences.
   • Adhere to standard rules of English grammar, punctuation, mechanics, and spelling.

   Your assignment must follow these formatting requirements:

   • Be typed, double spaced, using Times New Roman font (size 12), with one-inch margins on all sides; citations and references must follow APA Style format. The main citation here will be the procon.org website!
   • Include a cover page containing the title of the assignment, the student’s name, the professor’s name, the course title, and the date. The cover page and the reference page are not included in the required assignment page length.

   The specific course learning outcomes associated with this assignment are:

   • Identify the informal fallacies, assumptions, and biases involved in manipulative appeals and abuses of language.
   • Create written work utilizing the concepts of critical thinking.
   • Use technology and information resources to research issues in critical thinking skills and informal logic.
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