Question: Observation 1 2 3 Time (seconds) 129 190 84 154.2 4 OT = n where OT = Observed time x = Sum of recorded times

Observation 1 2 3 Time (seconds) 129 190 84 154.2

Observation 1 2 3 Time (seconds) 129 190 84 154.2 4 OT = n where OT = Observed time x = Sum of recorded times n= Number of observations OT = - Step 3: Find Normal Time (NT) Estimate Student 1's Performance Rating (PR) If Student 1 worked fast PR > 1 If Student 1 worked slow PR z= Your (4 airplane) sample mean I = Your (4 airplane) sample standard deviation s =. Desire accuracy percentage a = . Require sample size n = E =

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