A Method of Obtaining an Exact Confidence Interval for the Common Mean of Several Normal Populations

William R. Fairweather

Journal of the Royal Statistical Society Series C, 1972, vol. 21, issue 3, 229-233

Abstract: A linear combination T of Student's t statistics is proposed as a practical method of obtaining confidence intervals for the common mean, and the distribution function of T is conveniently approximated for the general case. Exact percentage points of T are compared with those based on this approximation for two populations and various sample size configurations.

Date: 1972
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