TABLE 14-15 the Superintendent of a School District Wanted to Predict the Predict

question 16

Multiple Choice

TABLE 14-15
The superintendent of a school district wanted to predict the percentage of students passing a sixth-grade proficiency test. She obtained the data on percentage of students passing the proficiency test (% Passing) , daily mean of the percentage of students attending class (% Attendance) , mean teacher salary in dollars (Salaries) , and instructional spending per pupil in dollars (Spending) of 47 schools in the state.
Following is the multiple regression output with Y = % Passing as the dependent variable, X₁ = % Attendance, X₂= Salaries and X₃= Spending:

-Referring to Table 14-15, which of the following is the correct null hypothesis to determine whether there is a significant relationship between percentage of students passing the proficiency test and the entire set of explanatory variables?

• A) H₀: β₀ = β₁ = β₂ = β₃ = 0
• B) H₀: β₁ = β₂ = β₃ = 0
• C) H₀: β₀ = β₁ = β₂ = β₃ ≠ 0
• D) H₀: β₁ = β₂ = β₃ ≠ 0

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Definitions:

Material

Substances or components that are used in the production or manufacturing of goods.

Facility Costs

Expenses associated with the physical buildings and infrastructure used in production, storage, and operations of a business.

Product Variety

The range of different products or services offered by a company to meet diverse customer needs or market segments.

Distribution Network

The linked network of warehouses and logistical systems that transport products from manufacturers to buyers.