Description
I took this class before so the word document is completed however, I to re word it so its not like I plagiarized my own work, the other thing is I am needing to make sure I did the assignment correctly and the excel spreadsheet is answered correctly and incorporated in the word doc:
Histograms and Descriptive Statistics
Your first IBM SPPS assignment includes two sections in which you will:
- Create two histograms and provide interpretations.
- Calculate measures of central tendency and dispersion and provide interpretations.
Key Details and Instructions
- Submit your assignment as a Word document.
- Begin your assignment by creating a properly formatted APA title page. Include a reference list at the end of the document if necessary. On page 2, begin Section 1.
- Write your report in narrative format, integrating your SPSS output charts and tables with your responses to the specific requirements listed for this assignment. (See the Copy/Export Output Instructions in the Resources area.)
- Label all tables and graphs in a manner consistent with APA style and formatting guidelines. Citations, if needed, should be included in the text as well as in a reference section at the end of the report.
- Refer to the IBM SPSS Step-By-Step Guide: Histograms and Descriptive Statistics (in the Resources area) for additional help in completing this assignment.
Section 1: Histograms and Visual Interpretation
Section 1 will include one histogram of total scores for all the males in the data set, and one histogram of total scores for all the females in the data set.
Using the total and gender variables in your grades.sav data set, create two histograms:
- A histogram for male students.
- A histogram for female students.
Copy the histogram output from SPSS and paste it into a Word document. Below the histograms in your Word document, provide an interpretation based on your visual inspection. Correctly use all of the following terms in your discussion:
- Skew.
- Kurtosis.
- Outlier.
- Symmetry.
- Modality.
Comment on any differences between males and females regarding their total scores. Analyze the strengths and limitations of visually interpreting histograms.
Section 2: Calculate and Interpret Measures of Central Tendency and Dispersion
Using the grades.sav file, compute descriptive statistics, including mean, standard deviation, skewness, and kurtosis for the following variables:
- id
- gender
- ethnicity
- gpa
- quiz3
- total
Copy the descriptives output from SPSS and paste it into your Word document. Below the descriptives output table in your Word document:
- Indicate which variables are meaningless to interpret in terms of mean, standard deviation, skewness, and kurtosis. Justify your decision.
- Next, indicate which variables are meaningful to interpret. Justify your decision.
- For the meaningful variables, do the following:
- Specify any variables that are in the ideal range for both skewness and kurtosis.
- Specify any variables that are acceptable but not excellent.
- Specify any variables that are unacceptable.
- Explain your decisions.
- For all meaningful variables, report and interpret the descriptive statistics (mean, standard deviation, skewness, and kurtosis).
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Explanation & Answer
See attached:)
ASSIGNMENT - HISTOGRAMS AND DESCRIPTIVE STATISTICS
ENTER NAME HERE---> Student name
SPECIAL REQUIRED WORKSHEET FOR FIRST ASSIGNMENT (due Week 3)
This worksheet is designed to make it easier for you to do better on this first assignment. As statistics is new
answer choices (rather an infinite number) may be helpful. This worksheet contains lots of multiple
even these provide some guidance. Remember: This worksheet is required but does not replace the full
You must submit both.
First things first...
You are required to show your SPSS output in your assignment paper
following questions.
When you submit your work (in the Word doc), will you include a histogram for males?
Yes
When you submit your work (in the Word doc), will you include a histogram for females?
Yes
When you submit your work (in the Word doc), will you include a table of descriptive statistics?
Yes
Section 1:
Please describe each histogram by selecting choices from each of the drop
For each histogram below, you'll see 5 drop-down boxes, each marked with a number (1 through 5). Each dro
histogram. The first asks you to describe the skewness. The second asks for a description of kurtosis. The th
DROP-DOWN BOXES, you'll need to select a choice from the drop-down menu that best describes the histog
please move on to the histogram for females. If you have any questions about these instructions, please ema
HISTOGRAM FOR MALES
(1) Describe the skewness:
Slight negative
(2) Describe the kurtosis:
Distribution is Leptokurtic
(3) Describe the outliers:
>=2 Outliers
(4) Describe the symmetry:
Asymmetrical Distribution
(5) Describe the modality:
Unimodal
In general, what's the main strength and limitation of a histogram? Pick from each drop
Main Strength of a Histogram:
Allows you to see quickly whether there's a normal distribution and if you have outliers
Main Limitation of a Histogram:
Does not allow for accurate assessment of the precise relationship between data points
Section 2:
Please address all questions below. Note that it is CRITICALLY IMPORTANT
provide incorrect answers across other portions of this worksheet and full assignment (e.g., in describin
time to arrive at the correct answers to the questions.
Each one of the variables below is either meaningful or meaningless.
Use the drop-down box next to each variable to indicate whether it's meaningful or mean
IMPORTANT NOTE: There are 3 meaningless variables and 3 meaningful var
GPA
Gender
Total
ID
Quiz3
Ethnicity
Meaningful Variable
Meaningless Variable
Meaningful Variable
Meaningless Variable
Meaningful Variable
Meaningless Variable
Thank you for picking 3 meaningful and 3 meaningless variables! Please c
For each meaningful variable you selected above, please fill in the table below.
See those colored boxes below? This is a fill-in-the-blank exercise and those boxes are the blank
Please type in the correct values for each. Be sure that answers are written to include two digits
So, 2.78 is okay, but 3 is not. 0.76 is okay but 0.8 is not, etc.
Example: See that first box in the upper left of the table below? You have to type in the Mean for t
(You'll notice that the 3 meaningful variables you selected have been automatically placed in the t
MEANINGFUL VA
Mean
GPA
2.86
Total
7.36
Quiz3
99.95
For each meaningful variable you selected above, please fill in the table below using the drop-dow
See those colored boxes below? Each one contains a drop-down menu.
The assignment asked you to identify for each variable, whether the skew is ideal, acceptable (but
It also asked you to identify for each variable, whether the kurtosis is ideal, acceptable (but not ide
Please select the choice that is the best evaluation of the skew and kurtosis of your three meaning
Example: For the first box in the upper left part of the table below, you need to choose the option
that characterizes the skew of your first meaningful variable.
(You'll notice that the meaningful variables you selected have been automatically placed in the ta
Evaluate Skew
GPA
Ideal
Total
Ideal
Quiz3
Ideal
CONGRATULATIONS! You've completed this worksheet!
VE STATISTICS
1
NT (due Week 3)
is first assignment. As statistics is new to most of you, you may find that having fewer
sheet contains lots of multiple-choice questions. It also contains s...