Ten sophomore took a test to determined how happy theywere. The scores on the te

Question

Ten sophomore took a test to determined how happy theywere. The scores on the test ranged from 0 to 12 (with higherscores meaning the perosn was happpier). The CoeffiecientAlpha = .84. The Standard Deviation = 2.00. Here were therescores: Tim= 8.00 Mary= 10.00 George=13.00 Alfonzo=12.00 Jimmy= 10.00 Tina = 9.00 Shantelle= 12.00 Lucy=6.00 Jose=12.00 Melody=8.00 What is the Mean? What is the Standard Error of Measurement? With 68% Confidence, were does Jimmy's score fall? With 95% confidence, were does Lucy's score fall? Please show all work so that I may follow to understand how todo this problem. Thanks Ten sophomore took a test to determined how happy theywere. The scores on the test ranged from 0 to 12 (with higherscores meaning the perosn was happpier). The CoeffiecientAlpha = .84. The Standard Deviation = 2.00. Here were therescores: Tim= 8.00 Mary= 10.00 George=13.00 Alfonzo=12.00 Jimmy= 10.00 Tina = 9.00 Shantelle= 12.00 Lucy=6.00 Jose=12.00 Melody=8.00 What is the Mean? What is the Standard Error of Measurement? With 68% Confidence, were does Jimmy's score fall? With 95% confidence, were does Lucy's score fall? Please show all work so that I may follow to understand how todo this problem. Thanks

Explanation / Answer

Mean = 10 SEM= .8 68% = 10+ or - .8 95%= 6 + or - 1.6

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