(Solution) An educational psychologist wanted to conduct an experiment to determine whether varying the conditions in which learning and testing take place has... > Snapessays.com


(Solution) An educational psychologist wanted to conduct an experiment to determine whether varying the conditions in which learning and testing take place has...


An educational psychologist wanted to conduct an experiment to determine whether varying the conditions in which learning and testing take place has an effect on test results. She randomly selects 10 students from her large lecture hall class and administers an exam to 5 students in the same large lecture hall and 5 in a small classroom. She does the same with 10 students from her small classroom class. The following is a portion of the minitab output from the ANOVA. Perform all tests using alpha = 0.05

 

 

Source DF SS MS F P

 

 

Lecture Administered 1 18.05 18.05 0.13 0.718

 

 

Exam Given 1 0.45 0.45 0.00 0.954

 

 

Interaction 1 1602.05 1602.05 11.97 0.003

 

 

Error 16 2142.00 133.88

 

 

Total 19 3762.55

 

 

S = 11.57 R-Sq = 43.07% R-Sq(adj) = 32.40%

 

 

 

 

Does an interaction exist between the two factors? (enter yes or no)

 

 

Should minitab be re-run? (enter yes or no)

 

 

Is there an effect on grade received due to where the lecture was administered? (enter yes or no)

 

 

Is there an effect on grade received due to where the exam was given? (enter yes or no)

 

 

Two-way ANOVA: Exam Grade versus Lecture Administered, Exam Given

 


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This question was answered on: Sep 21, 2023

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