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A modified sequential procedure is put forward for the problem of estimating the mean of a normal population by a confidence interval of prescribed width and confidence coefficient, when the ...

This is a preview. Log in through your library . Abstract This paper obtains and explores a family of confidence procedures for the mean of a normal distribution which are, in a certain sense, more ...

Confidence intervals show the likelihood a data range contains the true mean, aiding investment decisions. A wider interval suggests lower estimate accuracy, influencing market and risk analysis ...

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The confidence interval for the variance has upper and lower limits equal to the squares of the corresponding upper and lower limits for the standard deviation. Figure 38.11 shows a table of the 95% ...