## Assignment: scatter plot

Assignment: scatter plot
Assignment: scatter plot
Assignment: scatter plot
A researcher is interested in investigating the relationship between viewing time (in seconds) and ratings of aesthetic appreciation. Participants are asked to view a painting for as long as they like. Time (in seconds) is measured. After the viewing time, the researcher asks the participants to provide a preference rating for the painting on a scale ranging from 1-10. Create a scatter plot depicting the following data:
Viewing Time in Seconds Preference Rating
10 3
12 4
24 7
5 3
16 6
3 4
11 4
5 2
21 8
23 9
9 5
3 3
17 5
14 6
What does the scatter plot suggest about the relationship between viewing time and aesthetic preference? Is it accurate to state that longer viewing times are the result of greater preference for paintings? Explain. Submit your scatter plot and your answers to the questions to your instructor.
Scatter Diagram Procedure
Collect pairs of data where a relationship is suspected.
Draw a graph with the independent variable on the horizontal axis and the dependent variable on the vertical axis.
Look at the pattern of points to see if a relationship is obvious.
Divide points on the graph into four quadrants.
What are the 3 types of scatter plots?
With scatter plots we often talk about how the variables relate to each other. This is called correlation. There are three types of correlation: positive, negative, and none (no correlation). Positive Correlation: as one variable increases so does the other.
What does a scatter plot matrix tell you?
Notice how quickly you can scan the plots for highly correlated variables and for outliers. Each scatter plot is constructed from two numeric variables. A third, alphanumeric, variable may be used to control the plot symbol. These options are used to define the scatter plot matrix.

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