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

question 28

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 average of the percentage of students attending class (% Attendance) , average 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:
Note:

-Referring to Table 14-15, which of the following is the correct alternative hypothesis to test whether daily average of the percentage of students attending class has any effect on percentage of students passing the proficiency test?

• A) H₁ : β₀ ≠ 0
• B) H₁ : β₁ ≠ 0
• C) H₁ : β₂ ≠ 0
• D) H₁ : β₃ ≠ 0

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Definitions:

Zero-Order Reaction

a chemical reaction in which the rate is independent of the concentration of the reactant(s).

Cocaine

A powerful stimulant drug derived from the leaves of the coca plant, used medically as a local anesthetic and often abused for its euphoric effects.

First Order

In kinetics, refers to a reaction where the rate is proportional to the concentration of one reactant.

Reaction Order

A term used in chemistry to describe the power to which the concentration of a reactant is raised in the rate equation.