Examlex
Instruction 13.22
The education department's regional executive officer wanted to predict the percentage of students passing a Grade 6 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:
-Referring to Instruction 13.22,you can conclude that mean teacher salary has no impact on mean percentage of students passing the proficiency test at a 10% level of significance based solely on the 95% confidence interval estimate for β2.
Unknown Mean
Refers to a situation in statistics where the average value of a dataset is not known and needs to be estimated.
Normal Random Variable
A variable that assumes any of the infinitely many values in a normal distribution curve.
Lifespan
The duration of time an organism, object, or process exists or functions until it ceases to do so.
Salmon Flies
Artificial fishing baits designed to imitate the adult form of salmon flies used in fly fishing.
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