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BA 275 Quantitative Business Methods

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Presentation on theme: "BA 275 Quantitative Business Methods"— Presentation transcript:

1 BA 275 Quantitative Business Methods
Agenda Summarizing Quantitative Data Descriptive Statistics Box and Whisker Plot Quiz #1 Announcement Check your COB account for any latest update. CyberStats Tech support: 1 – 888 – 281 – 2990 1 – 800 – 423 – 0563 TA: Shen. 8:00 – 9:50 am, Friday at 328 Bx.

2 Statistical Analysis

3 Types of Data Numerical (Quantitative) Data
Regular numerical observations. Arithmetic calculations are meaningful. Age Household income Starting salary Categorical (Qualitative) Data Values are the (arbitrary) names of possible categories. Gender: Female = 1 vs Male = 0. College major

4 Summarizing Quantitative Data (p.4)

5 Summarizing Quantitative Data: Histogram

6 Histogram vs. Barchart Histogram applet

7 Summarizing Quantitative Data (p.4)

8 Summarizing Quantitative Data: Summary/Descriptive Statistics
AGE SALARY Count Average Median Mode Variance ? Standard deviation ? Minimum Maximum Range Lower quartile ? Upper quartile Interquartile range ?

9 Percentiles for Salary


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