Consider the following. (Give your answers correct to t

Consider the following. (Give your answers correct to two decimal places.)

Solution

a) 1-a=0.83

a=0.17

confidence coefficient is Za/2

=Z0.17/2

=Z0.085

look in the cumulative standard normal table for value 1-0.085 = 0.9150

closest value is 0.9147 for z=1.37

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