SCENARIO 13-11
a Computer Software Developer Would Like to Use $H _ { 0 } : b _ { 1 } = 0$

question 42

Short Answer

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? a) $H _ { 0 } : b _ { 1 } = 0$
b) $H _ { 0 } : b _ { 1 } \neq 0$
c) $H _ { 0 } : \beta _ { 1 } = 0$
d) $H _ { 0 } : \beta _ { 1 } \neq 0$

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Definitions:

Brain Activation

The process of certain regions of the brain becoming engaged and active in response to stimuli.

Confounding Variable

An outside influence that can affect the results of an experiment, making it difficult to discern the actual relationship between the tested variables.

Western Media

Media outlets and content originating from or primarily informed by Western cultural perspectives, often characterized by a focus on individualism and democracy.

Benjamin Whorf

An American linguist known for his hypothesis on the relationship between language and thought.