For each example below you would start to construct a confidence interval by identifying which distribution should be used to find the margin of error. It is possible that you won't be able to use either distribution.
(a) a confidence interval for a population proportion where n = 66 and there are 63 successes in your sample leading to a sample proportion of 0.955
A. z-distribution
B. t-distribution
C. neither distribution
(b) a confidence interval for a population proportion where
n = 39 and there are 29 successes in your sample leading
to a sample proportion of 0.744
A. z-distribution
B. T-distribution
C. neither distribution
Solution:
a)
We use Z - distribution
A) z-distribution
Option A is correct.
b)
A. z-distribution
Option A is correct.
For each example below you would start to construct a confidence interval by identifying which distribution...
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