[問題] 區間估計
A quality engineer wanted to be 98% confident that the maximum error
of the estimate of the mean strength, μ, of the left hinge on a vanity
cover molded by a machine is 0.25. A preliminary sample of size n=32
_
parts yielded a sample mean of x=35.68 and a standard deviation of
s=1.723
How large a sample is required ?
請問題目是什麼意思??
of the left hinge on a vanity cover molded by a machine is 0.25.
這句實在不懂
謝謝~
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