Use the given information to find the number of degrees of freedom, the critical values
chi Subscript Upper L Superscript 2χ2L
and
chi Subscript Upper R Superscript 2χ2R,
and the confidence interval estimate of
sigmaσ.
It is reasonable to assume that a simple random sample has been selected from a population with a normal distribution.
Platelet Counts of Women
99%
confidence;
nequals=29
sequals=65.5
Solution:
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