1305AFE Lecture 10: Week 10 Business Data Analysis Lecture Notes
Week 10 Business Data Analysis Lecture Notes
Correlation Analysis
Scatter Diagram
• Scatter Diagram is used to provide a preliminary analysis on the relationship
between two quantitative variables.
• Example
o A small-business owner wants to assess the effects of advertising on sales
levels.
o Paired observation data were collected.
o Each pair consisted of monthly advertising expenditure and monthly sales
levels.
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