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For the following data (a) Draw a scatter plot. (b) Find the value for r. (c) Test the significance of r at the 5% level and at the 1% level. (d) If r is significant, find the regression line and draw the line on the scatter plot. (e) Describe the nature of the relationship if one exists. (f) Predict y when x = 20.
OPEC Countries
Nations that are members of the Organization of the Petroleum Exporting Countries, known for their significant role in global oil production and prices.
Technological Advance
The progress in scientific research and development leading to new inventions or improvements in technology that can increase productivity and economic growth.
Demand
The willingness and ability of consumers to purchase goods and services at various prices during a certain period.
Ice Cream Cones
A sweet, frozen dessert typically made with dairy products and served in a cone, popular in many cultures around the world.
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