Two different microscopic methods, A and B, are available for the measurement of very small dimensions in
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Two different microscopic methods, A and B, are available for the measurement of very small dimensions in microns. As a result of several such measurements on the same object, estimates of variance are available as follows:
Give an interval in which you are 95% sure that the ratio of the variances lies.
Transcribed Image Text:
Method No. of observations Estimated variance A m = 15 s² = 7.533 B n = 25 s² = 1.112
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