SCENARIO 18-8
the Superintendent of a School District Wanted to Predict

question 122

True/False

SCENARIO 18-8
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, X ₂ = Salaries and X₃ = Spending:

-Referring to Scenario 18-8,you can conclude that average teacher salary individually has no impact on the mean percentage of students passing the proficiency test,considering the effect of all the other independent variables,at a 10% level of significance based solely on the 95% confidence interval estimate for $\beta$ ₂ .

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Definitions:

3-Pentanone

A ketone with the formula C5H10O, characterized by a three-carbon chain between the carbonyl group and the end of the molecule.

Ethylene Glycol

A colorless, practically odorless, poisonous, and hygroscopic liquid with sweet taste, used as antifreeze in cooling and heating systems.

Acetal

An acetal is a functional group characterized by two ether-like oxygen atoms bonded to the same carbon atom, commonly formed from the reaction of an aldehyde and an alcohol.

Acetal

A carbon atom connected to an alkyl group, two -OR groups, and a hydrogen atom, typically formed from the reaction between an aldehyde and alcohol.