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Is there evidence that the mean number of time-out incidents for special education students assigned to...

Is there evidence that the mean number of time-out incidents for special education students assigned to Option I classrooms is less than the corresponding mean for special education students assigned to Option II classrooms?  Test using α = .05

Option I

Option II

Number of students

100

55

Mean number of timeout incidents

78.67

102.87

Standard deviation

59.08

69.33
Math   Statistics-And-Probability   
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