Confidence Interval for a Population Mean
AP Statistics · Flashcards · Recall
AP STATISTICS · FLASHCARDS
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QUESTION
Which option increases the precision of a confidence interval?
QUESTION
How does variability affect the confidence interval?
QUESTION
What happens to the interval if sample standard deviation decreases?
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ANSWER
The interval becomes narrower. Smaller
s
s
s
reduces standard error and margin of error.
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