In a confidence interval, the margin of error is related to what aspect of the interval?*1 pointa. The sample sizeb. The mean of the samplec. The level of confidenced. The range of the data
Question
In a confidence interval, the margin of error is related to what aspect of the interval?*1 pointa. The sample sizeb. The mean of the samplec. The level of confidenced. The range of the data
Solution
The margin of error in a confidence interval is related to both the sample size and the level of confidence.
a. The sample size: The margin of error decreases as the sample size increases. This is because a larger sample size gives us a better estimate of the population parameter.
c. The level of confidence: The margin of error increases as the level of confidence increases. This is because a higher level of confidence means that we want to be more sure that our interval contains the population parameter, so we need a wider interval.
Therefore, the correct answer is both a and c.
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