Download presentation
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
Similar presentations
© 2024 SlidePlayer.com. Inc.
All rights reserved.