![]() This chapter is dedicated to Probability, and specifically the following areas: Within these four areas we will discuss the difference between populations & samples along with the relationship of descriptive statistics to inferential statistics. Graphical methods for depicting distributions – Construct, apply, and interpret diagrams such as normal and non-normal probability plots. Graphical methods for depicting relationships – Construct, apply, and interpret diagrams and charts such as stem-and-leaf plots, box-and-whisker plots, etc. Assess the validity of statistical conclusions by analyzing the assumptions used and the robustness of the technique used. Intro to Inferential Statistics – Distinguish between descriptive and inferential statistics. Part 2 of Collecting & Summarizing Data is dedicated to the following 4 topics which is more associated with the summarization of data.ĭescriptive statistics – Describe, calculate, and interpret measures of central tendency and dispersion (central limit theorem), and construct and interpret frequency distributions. Measurement scales – Define, describe, and use nominal, ordinal, interval, and ratio scales.ĭata collection methods – Describe various methods for collecting data, including tally or check sheets, data coding, automatic gaging, etc., and identify their strengths and weaknesses of the methods.ĭata accuracy – Apply techniques that ensure data accuracy and integrity, and identify factors that can influence data accuracy such as source/resource issues, flexibility, versatility, inconsistency, inappropriate interpretation of data values, and redundancy. ![]() Types of data – Define, classify, and compare discrete (attributes) and continuous (variables) data. ![]() Part 1 is the following four basic concepts. I broke this section up into two separate parts. Statistics is the most difficult portion of the CQE exam, and represents 23% of the exam (36 out of 160 exam questions). ![]() The sixth pillar of the CQE Body of Knowledge is the Quantitative Methods & Tools and it contains 8 main chapters within it:
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