Prior to beginning work on this assignment, review Chapter 1 and Chapter 2 in your course textbook, Chapter 3 in the Jarman e-book, the Week 1 Instructor Guidance, and review the
Module 2: Describing Data
video and the Khan Academy video on
Interquartile Range (IQR) (Links to an external site.)
. Also, complete the Week 1 learning activity and Week 1 weekly review.
This exercise requires the use of a descriptive statistics calculator. You can find this tool in some versions of Excel (as part of the Analysis ToolPak) or you can use one of the many free online descriptive calculators such as the
Descriptive Statistics Calculator (Links to an external site.)
by Calculator Soup.
Your instructor will post an announcement with the data set for your Week 1 assignment.
First, use either Excel or the Calculator Soup descriptive statistics calculator to calculate the descriptive statistics for the given data set. This is explained in Chapter 1 of your course text.
You should get an output similar to the image in Figure 1.3 from your textbook. This output must contain the following values: mean, standard error, median, mode, standard deviation, sample variance, kurtosis, skewness, range, minimum, maximum, sum, and count.
Next, begin writing your paper by reporting your results for each of the values listed above.
Include the data set, the output from the analysis, and the answers to the following questions:
Which measure of central tendency is most appropriate based on the data type?
Are the mean, median, and mode close to the same value? If not, what does this tell you about the numbers in the set?
Identify any mode(s) in the data set. Is there a mode at all? Is there more than one mode?
Test to see if there are any outliers in the set. If so, which number(s)?
Which method from Section 2.4 of the text did you first use to check for outliers?
Now try the other method from Section 2.4 of the text. Do you come to the same conclusion about outliers in the data set?
The Descriptive Statistics Data Analysis assignment
Title of paper
Student’s name
Course name and number
Instructor’s name
Date submitted
For further assistance with the formatting and the title page, refer to
APA Formatting for Word 2013 (Links to an external site.)
.
For assistance on writing Introductions & Conclusions (Links to an external site.), refer to the Ashford Writing Center resources.
Must include a separate references page that is formatted according to APA Style as outlined in the Ashford Writing Center. See the
APA: Formatting Your Referaences List (Links to an external site.)
resource in the Ashford Writing Center for specifications.
Carefully review the
Grading Rubric (Links to an external site.)
for the criteria that will be used to evaluate your assignment
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