How many observations should be made if he wants to be 95.44 percent confident that the maximum error in the observed time is one second? Assume that the standard deviation of the task time is 5 seconds.
A)5
B)10
C)25
D)100
E)121

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The Answer of How many observations should be made if he wants to be 95.44 percent confident that the maximum error in the observed time is one second? Assume that the standard deviation of the task time is 5 seconds.
A)5
B)10
C)25
D)100
E)121

How Many Observations Should Be Made If He Wants to Be