# Business Statistics: Relationship between Confidence Intervals & Hypothesis Testing

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What is the relationship between confidence intervals and hypothesis testing? How are they the same? How are they different?

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What is the relationship between confidence intervals and hypothesis testing? How are they the same? How are they different?

There exists a close relationship between confidence intervals and hypothesis testing. When we construct a 90 % confidence interval to estimate a population parameter, all values in the interval are considered probable values for the parameter being estimated. Values outside the interval are rejected as relatively improbable.

If the value of the parameter specified by the null hypothesis is contained in the confidence interval so constructed ...

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