WS2_key

# WS2_key - EDF5432 Spring 2002 Worksheet 2 Obtain values by...

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EDF5432 Spring 2002 Worksheet 2 Obtain values by using the five assumptions of Classical Theory, four different forms of reliability, and the facts; a. σ= , and b. 22 XT σ+ σ 2 E ' XY X Y ρ . 1. a. Given X = 10 and E = 2, what is T ? T = X E = 10 – 2 = 8 b. Given and , what is 2 5 T 2 10 X 2 E σ ? σ 2 E = σ 2 X σ 2 T = 10 – 5 = 5 c. Given and , what is 2 3 T 2 9 X 2 XT ρ ? ρ 2 XT = ρ XX’ = σ 2 T 2 X = 3/9 =0.33 d. Given and , what is 2 1 E 2 4 X 2 XT ρ ? ρ 2 XT = ρ XX’ = 1 – σ 2 E 2 X = 1 – 1/4 = 0.75 e. X and X' are parallel tests. Given 2 10 X σ = and ' 0.3 XX ρ = , what is ? What is ? σ 2 ' X σ XT ρ 2 X’ = σ 2 X = 10,
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## This note was uploaded on 11/27/2011 for the course EDF 5432 taught by Professor Fenley during the Spring '06 term at FSU.

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