Multiple Choice
We have calculated a 95% confidence interval and would like our next confidence interval to have a smaller margin of error without losing any confidence. In order to do this, we can
A) change the z* value to a smaller number.
B) take a larger sample.
C) take a smaller sample.
D) use z* = 2.576.
E) use z* = 1.645 and decrease size of sample.
Correct Answer:
Verified
Correct Answer:
Verified
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