level, that is the subtraction of 1 by the confidence interval divided by 2. So:
. This is our critical value.
, so 
Which of the following is the upper critical value of z (z*) for an 80% confidence interval?
<...
Mathematics, 02.01.2020 23:31 russelllang606
Which of the following is the upper critical value of z (z*) for an 80% confidence interval?
a. 1.96
b. 84
c. 2.33
d. 1.45
e. 1.28
Answers: 1
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