A real estate analyst believes that the three main factors that influence an apartment's rent in a college town are the number of bedrooms, the number of bathrooms, and the apartment's square footage. For 40 apartments, she collects data on the rent (y, in $) , the number of bedrooms (x1) , the number of bathrooms (x2) , and its square footage (x3) . She estimates the following model: Rent = β0 + β1Bedroom + β2Bath + β3Sqft + ε. The following table shows a portion of the regression results. 
When testing whether the explanatory variables jointly influence the response variable, the null hypothesis is ________.
Definitions:
White (Non-Hispanic) People
A demographic group identified by the U.S. Census Bureau referring to individuals who self-identify as white and not of Hispanic or Latino origin.
Women
Female humans, often referred to in contexts concerning social, cultural, and economic issues specific to their gender.
Children Under 18
Individuals who are younger than 18 years old, considered minors in most jurisdictions.
Individuals Over 65
People who are aged 65 years and above, often considered seniors or elderly in many societies.
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