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+// Example 4.18 A sample size 8 from a normal population yields as the unbiased estimate of population variance
+clc;
+clear;
+n=8;
+sd=4.4;
+disp(((n-1)*(sd))/0.99,"to",((n-1)*(sd))/20.3,"The required 99% confidence limits for population proportion variance are ")
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