Suppose that , and are estimators of the parameter

Which of the following is the 95th percentile of chi-square values for the sample size 17? (a) 7.962 (b) 8.682 (c) 26.296 has the area below 0.95 and area above 0.05 with the df=16 (d) 27.587 (e) 28.845. What sample size would be required for the width of a 95% large sample confidence interval of the true proportion to be at most 0.05 ... ................
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