Capella University Histograms and Descriptive Statistics Assignment

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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:

  1. Create two histograms and provide interpretations.
  2. 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).

Unformatted Attachment Preview

ASSIGNMENT - HISTOGRAMS AND DESCRIPTIVE STATISTICS ENTER NAME HERE---> 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 positive (2) Describe the kurtosis: Distribution is Platykurtic (3) Describe the outliers: >=2 Outliers (4) Describe the symmetry: Please select a choice (5) Describe the modality: Please select a choice In general, what's the main strength and limitation of a histogram? Pick from each drop Main Strength of a Histogram: Please select a choice Main Limitation of a Histogram: Please select a choice 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 Please select a choice Please select a choice Please select a choice Please select a choice Please select a choice Please select a choice You haven't selected all 3 Meaningful Variables yet. You haven't selected all 3 Meaningless Variab 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 Waiting for a Meaningful Variable here Waiting for a Meaningful Variable here Waiting for a Meaningful Variable here 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 Waiting for a Meaningful Variable here Please select a choice Waiting for a Meaningful Variable here Please select a choice Waiting for a Meaningful Variable here Please select a choice WARNING: You haven't answered all the questions. You need to answer 31 more q One of those questions asks for YOUR NAME. Please insert it at the top of the shee WARNING! You need to select EXACTLY 3 MEANINGFUL VARIABLES. You haven't VE STATISTICS 0 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 some fill-in questions but required but does not replace the fully-written Word doc part of the assignment. put in your assignment paper. So, please use the drop-down boxes below to answer the a histogram for males? 1 a histogram for females? 1 a table of descriptive statistics? 1 ces from each of the drop-down boxes shown below. d with a number (1 through 5). Each drop-down box will ask you to describe a feature of a given asks for a description of kurtosis. The third is about outliers, and so on. FOR EVERY ONE OF THE 5 wn menu that best describes the histogram. When you're finished describing the histogram for males, ns about these instructions, please email me within the courseroom. HISTOGRAM FOR FEMALES (1) Describe the skewness: Strong negative 1 (2) Describe the kurtosis: Distribution Has Normal Kurtosis 1 (3) Describe the outliers: 1 1 Outlier (4) Describe the symmetry: Please select a choice 0 (5) Describe the modality: Please select a choice 0 am? Pick from each drop-down box below. 0 0 CRITICALLY IMPORTANT to get these right. If you don't, then you will and full assignment (e.g., in describing skew, kurtosis, etc.). Please take the meaningful or meaningless. e whether it's meaningful or meaningless ariables and 3 meaningful variables. GPA numerical that is meant 0 Examples of a meaningful variable 0 (something to be used in calculations): body 0 Gender 0 weight, # of coins, test grades; 0 Total 0 Examples of a meaningless variable0(something that isn't meant to ID 0 be used in calculations, even if it's numerical): hair color, religion, driver's license # (you can add red 0 Quiz3 0and green, any more than you should be adding 2 driver's license numbers) 0 Ethnicity 0 selected all 3 Meaningless Variables yet. fill in the table below. cise and those boxes are the blanks. s are written to include two digits after the decimal place. You have to type in the Mean for the first meaningful variable you selected above. been automatically placed in the table.) MEANINGFUL VARIABLES SD Skewness Kurtosis he table below using the drop-down menus. the skew is ideal, acceptable (but not ideal), or unacceptable. sis is ideal, acceptable (but not ideal), or unacceptable. and kurtosis of your three meaningful variables. w, you need to choose the option from the drop-down een automatically placed in the table.) Evaluate Kurtosis Please select a choice 0 0 Please select a choice 0 0 Please select a choice 0 0 ou need to answer 31 more question(s). insert it at the top of the sheet. UL VARIABLES. You haven't done that. Please check Section 2. 0 1 1 1 NE OF THE 5 am for males, 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 used in calculations, even if it's 0 d green, any more than you should be 0 0 nt to be used in calculations): body 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 9 Please select Yes or No Yes No Enter skewness description skewness Please select a choice Strong negative Slight negative No skew Slight positive Strong positive lease select Yes or No Please select a choice Meaningless Variable Meaningful Variable nter skewness description kurtosis outliers symmetry modality Please select aPlease choiceselect aPlease choiceselect aPlease choiceselect a choice Distribution isNo Platykurtic Outliers Symmetrical Distribution Unimodal Distribution is1Leptokurtic Outlier Asymmetrical Bimodal Distribution Distribution Has >=2Normal Outliers Kurtosis ight positive rong positive Please select a choice Allows you to see quickly wh Allows for accurate assessm Allows for a quick inferential Please select a choice Please select a choice Is very difficult CHOICES: to construct allows andfor interpret: quick assessment RequiresIdeal a for Ph.D. normal in statistics distribution and presence of outliers; allow Does not allow CHOICES: for accurate allows assessment for quick of assessment the precise Acceptable for relationship normal distribution between and datapresence points of outliers; doe Requires special inferential analysis and weeks to complete Unacceptable IBM SPSS Step-by-Step Guide: Histograms and Descriptive Statistics Note: This guide is an example of creating histograms and descriptive statistics in SPSS with the grades.sav file. The variables shown in this guide do not correspond with the actual variables assigned in Unit 3 Assignment 1. Carefully follow the Unit 3 Assignment 1 instructions for a list of assigned variables. Screen shots were created with SPSS 21.0. Section 1: Histograms and Visual Interpretation Refer to your Unit 3 assignment instructions for a list of assigned Section 1 variables. The example variable final is shown below. Step 1. Open grades.sav in SPSS. 1 Step 2. On the Graphs menu, point to Legacy Dialogs and click Histogram… Step 3. In the Histogram dialog box: • First, select your assigned variable for Unit 3 Assignment 1. Move it to the Variable box. The example of final appears below. • Second, select Display normal curve. • Third, move gender to the Rows box. • Fourth, click OK to generate the histogram output. 2 Step 4. The histogram output appears in SPSS. Copy your SPSS output. To do this, rightclick on the image and then click Copy. Step 5. Open a new Word document and right-click for the paste options. Paste the histogram output into the Word document. Below the histograms, write up your visual interpretations as described in your Unit 3 assignment. Section 2: Calculate and Interpret Measures of Central Tendency and Dispersion Refer to the Unit 3 assignment instructions for a list of assigned Section 2 variables. The example variable final is shown below. Step 1. On the Analyze menu, point to Descriptive Statistics and click Descriptives… 3 Step 2. In the Descriptives dialog box: • First, select your Unit 3 assignment variables. Move them to the Variable(s) box. The example variable final is shown below. • Second, click the Options button. • Third, select Mean, Std. deviation, Kurtosis, and Skewness. For Display Order, select Variable list. • Fourth, click Continue and then click OK. The descriptives output is generated in SPSS for your Unit 3 Assignment 1 variables. 4 Step 3. Copy the descriptive statistics output and paste it into your Word document. Below the output, write up your analyses as described in the Unit 3 assignment instructions. 5
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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...


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