SCENARIO 13-11 A computer software developer would like to use the number of downloads (in thousands) for the trial version of his new shareware to predict the amount of revenue (in thousands of dollars) he can make on the full version of the new shareware.Following is the output from a simple linear regression along with the residual plot and normal probability plot obtained from a data set of 30 different sharewares that he has developed: 
-Referring to Scenario 13-11, which of the following is the correct null hypothesis for testing whether there is a linear relationship between revenue and the number of downloads?
Definitions:
Cognitive Development
The process by which individuals acquire and evolve their cognitive abilities, including thinking, problem solving, and decision making, across the lifespan.
Formal Operational
refers to the final stage in Piaget's cognitive development theory, where individuals develop the ability to think abstractly and logically.
Centration
A cognitive limitation in early childhood, where the focus is on one aspect of a situation while ignoring others.
Preoperational
A stage in Piaget's theory of cognitive development, occurring from ages 2 to 7, where children begin to engage in symbolic play and learn to manipulate symbols but do not yet understand concrete logic.
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