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

question 241

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) ,mean teacher salary in thousands of dollars (Salaries) ,and instructional spending per pupil in thousands of dollars (Spending) of 47 schools in the state.
Following is the multiple regression output with Y = % Passing as the dependent variable,X₁ = Salaries and X₂ = Spending:
-Referring to Table 14-15,which of the following is the correct alternative 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)H₁ : β₀ = β₁ = β₂ ≠ 0
• B)H₁ : β₁ = β₂ ≠ 0
• C)H₁ : At least one of β_j ≠ 0 for j = 0,1,2
• D)H₁ : At least one of β_j ≠ 0 for j = 1,2

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Definitions:

Flowering Plants

Plants that produce flowers for reproduction, belonging to the angiosperm group, which includes a vast majority of the world's plant species.

Stamens

The pollen-producing reproductive organ of a flower, consisting of an anther and a filament.

Carpels

The female reproductive organs of a flower, consisting of an ovary, a stigma, and usually a style, which can develop into fruits and seeds after fertilization.

XIST Gene

A gene that is crucial for X-chromosome inactivation, a process that occurs in females to prevent the overexpression of X-linked genes.