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Sample Size and Confidence Interval. When I cover the entire population I get to know the truth – precisely. That means that when my sample size is high I get a more precise answer. That means that when my sample size increases my preciseness increases
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When I cover the entire population I get to know the truth – precisely. • That means that when my sample size is high I get a more precise answer. • That means that when my sample size increases my preciseness increases • That means that when my sample size increases my confidence interval becomes smaller
Confidence level .95 or 95% Alpha .05 Confidence level .99 or 99% Alpha .01
Confidence level Confidence Interval I am less confident of throwing inside the inner rings which represent small interval (think: confidence interval) I am more confident of throwing a dart any where on this dartboard which represents bigger interval (think: high confidence interval). Implies that I have higher confidence in making in the higher confidence interval
Confidence level .95 or 95% Alpha .05 Confidence interval