Expected value of the interval width

Reference no: EM131026357

The small-sample confidence interval for μ, based on Student's t (Section 8.8), possesses a random width-in contrast to the large-sample confidence interval (Section 8.6), where the width is not random if σ²is known. Find the expected value of the interval width in the small-sample case if σ² is unknown.

Reference no: EM131026357

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Expected value of the interval width : The small-sample confidence interval for μ, based on Student's t (Section 8.8), possesses a random width-in contrast to the large-sample confidence interval (Section 8.6), where the width is not random if σ2 is known. Find the expected value of the..

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