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The purpose of a confidence interval is to provide __________________.

A) information about the range of data in a distribution
B) a measure of the confidence we can have in our sample results representing the population
C) a list of all possible values of the statistic from all possible samples
D) plausible values that a parameter could take

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Answer:

D) plausible values that a parameter could take

Step-by-step explanation:

Confidence interval is estimated range of values for a population parameter could take in a given confidence level.

It can be represented as M±ME where

  • M is the point of estimate
  • ME is the margin of error

Confidence Intervals is measured to deal with uncertainty. For example, 95% confidence interval for a population mean is (25, 35) means that there is 95% chance that population mean is between the values 25 and 35.

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