Critical value please help
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Critical value please help

[From: ] [author: ] [Date: 12-07-11] [Hit: ]
......
Given: 95%; n = 11; σ is known; population appears to be very skewed.

Do one of the following as appropriate:

( a ) find the critical value zα/2
( b ) find the critical value tα/2
( c ) state that neither the normal nor the t distribution applies

-
jayson -

Both the Normal and the T-distribution assume an approximate bell-shaped curve. Since this population appears to be very skewed, state that neither the normal nor the t distribution applies

Hope that helps
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