Homework SourseAfind the critical value z a2 that corresponds to the confid
A)find the critical value z a/2 that corresponds to the confidence level of 86%? B)Find the critical value of z a/2 that corresponds to a= .01
Solution
a)
As
alpha/2 = (1-c)/2 = (1-0.86)/2 = 0.07
Then by table/technology,
z(alpha/2) = 1.475791028 [ANSWER]
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b)
As
alpha = 0.01
Then
alpha/2 = 0.005
Thus, by table/technology,
z(alpha/2) = 2.575829304 [ANSWER]
