Subject 1st 2nd #1 10 11 #2 4 6 #3 7 9 #4 6 5   a. Calculate the mean difference. b. Calculate SS for the difference scores.

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A: n1 = 10x¯1 = 18.2now add 2 students.x11 =15x12 = 17new mean = ?

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Q: . Explain what the mean is

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Q: The value of the stanard error of the mean for the scores :  1,2,3,4,5 ?

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Q: Find the deviations from the mean for the set of data: 26, 29, 22, 24, 24. Score 26 29 22 24 24…

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