BA 253: Business Statistics 09/03/08
Today Friday
Chapter 2 In Class Exercise 1
Start Chapter 3
Roll call
Pareto Diagram
o80/20 Rule
oSeparates “Vital Few” from “Trivial Many”
oHow to Improve FLC
Review Best
Do Worst
oLook up on Google.
Chapter 2 (Descriptive Tables and Graphs)
Qualitative (pp. 25-28) versus Quantitative
Data: How many minutes to commute to class?
oCollect data.
oOrdered Array
oFrequency
oRelative Frequency
oHistogram (5-10 classes, choose 6, not RS)
oClass Width = (Biggest – Smallest)/Number of Classes
oStem-and-Leaf
oMean, Median, Mode
By hand.
Calculator
oDo on Excel?
Data: 53, 76, 71, 72, 64, 85, 68, 63, 73, 71, 82, 79, 76, 70, 58
on = ?, OA, F, RF, H (5 classes), S&L
Collect Textbook Data
