Question
In team teaching, two or more teachers lead a class. A researcher tested the use of team teaching in mathematics education. Two of the variables
In team teaching, two or more teachers lead a class. A researcher tested the use of
team teaching in mathematics education. Two of the variables measured in each
sample of 164 mathematics teachers were years of teaching experience x and reported
success rate y (measured as a percentage) of team teaching mathematics classes.
a) The researcher hypothesized that mathematics teachers with more years of
experience will report higher perceived success rates in team-taught classes. State
this hypothesis in terms of the parameter of a linear model relating x to y.
b) The correlation coefficient for the sample data was reported as r = -0.32. Interpret
this result.
c) Does the value of r support the hypothesis? Test using = .05.
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