# What happens to the confidence interval if you increase the confidence level?

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Ramchandran A.
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Nov 2, 2015

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The range of possible values for the parameter under discussion widens.

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While studying the properties of a Normal Distribution, we calculate the 1

The 3

#sigma# limit simply means Pr {#mu# - 3#sigma# < x <#mu# + 3#sigma# ] which is roughly 0.95.

When we increase the probability, naturally the range widens to include more values.

we talk about#6 sigma# as defining the quality of the process.

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