TABLE 17-8 the Superintendent of a School District Wanted to Predict the Predict

question 121

Multiple Choice

TABLE 17-8
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,X₂ = Salaries and X₃ = Spending:
-Referring to Table 17-8,which of the following is a correct statement?

• A)The mean percentage of students passing the proficiency test is estimated to go up by 8.50% when daily average of percentage of students attending class increases by 1%.
• B)The daily mean of the percentage of students attending class is expected to go up by an estimated 8.50% when the percentage of students passing the proficiency test increases by 1%.
• C)The mean percentage of students passing the proficiency test is estimated to go up by 8.50% when daily average of the percentage of students attending class increases by 1% holding constant the effects of all the remaining independent variables.
• D)The daily mean of the percentage of students attending class is expected to go up by an estimated 8.50% when the percentage of students passing the proficiency test increases by 1% holding constant the effects of all the remaining independent variables.

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Definitions:

Pili

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Protist Structures

The varied and complex cellular organizations found in protists, ranging from single-celled to multicellular forms.

Eyespot

A pigmented organelle found in some algae and protozoa, allowing the organism to sense light direction.

Giardiasis

An infection of the small intestine caused by the protozoan parasite Giardia lamblia, leading to diarrhea, abdominal pain, and weight loss.