BASIC STATISTICAL MEASURES

Mod 2 – SLP:

1. The following data were collected from 10 individuals:

Age

Number of past jobs

Current job status

Income

employed

30,000

unemployed

40,000

employed

40,200

unemployed

45,000

employed

52,000

unemployed

25,000

employed

80,000

unemployed

120,000

employed

120,000

unemployed

38,000

1. Calculate the mean, median, and mode for “Age” (with SPSS).

2. Calculate measures of dispersion for “Age” (with SPSS).

3. Calculate Skewness and Kurtosis for “Income” (with SPSS). Is this variable skewed? If so, what kind of skew?

4. Prepare a frequency distribution for the data of “number of past jobs.” Plot it (bar chart).

5. Given the provided income distribution (and assuming normality), what would be the z-score for someone who earns $40,000/year? $100,000/year?

SLP Assignment Expectations

1. Answer all questions with clarity and depth. Show your critical thinking ability.

2. Show necessary reasoning.

3. You do not need to write an essay for SLP assignment; answering the questions is sufficient.

My Note: ( need 3 Pages ) . ( Need sources and References ) (APA)

Module 2 – Outcomes

BASIC STATISTICAL MEASURES

· Module

· Identify and understand measures related to variable distributions.

· Identify basic measures of central tendency and variability in data and choose appropriate summary statistics depending on the nature of the data.

· Understand the normal distribution and its uses.

· Case

· Understand the various attributes of variable distributions, and the implications of these attributes for research.

· Understand the selection of measures and the basic concepts associated with the normal distribution.

· SLP

· Understand key concepts related to and measures of central tendency and dispersion, measure selection, and the normal distribution.

· Discussion

· Develop critical thinking regarding variables and their distributions.

Required Reading

On measures of central tendency:

1. Dietz, D., Barr, C. D., & Çetinkaya-Rundel, M. (2016). OpenIntro statistics, 3rd ed. (The textbook is available under a Creative Commons license. Visit openintro.org for a free PDF, to download the textbook’s sources, or for more information about the license.) https://www.openintro.org/stat/textbook.php?stat_book=os Chapters 2, 3, and 4.

2. http://www.rci.rutgers.edu/~japhill/ho3s04.pdf

3. Watch: http://www.youtube.com/watch?v=E4HAYd0QnRc

4. Watch: http://www.youtube.com/watch?v=RAekTsenqPI

On the Normal distribution

1. https://www3.nd.edu/~rwilliam/stats1/x21.pdf

2. http://www.youtube.com/watch?v=mai23vW8uFM

3. http://www.dummies.com/how-to/content/understanding-the-statistical-properties-of-the-no.html

4. http://www.dummies.com/how-to/content/how-to-find-a-percentile-for-a-normal-distribution.html

Optional Reading