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mia3128
25.08.2021 •
Mathematics
Evaluate : (i) −5 8 7 3 (ii) −6 −11 X (-4)
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Ответ:
Ответ:
Step-by-step explanation:
Given : Confidence level :![1-\alpha=0.99](/tpl/images/1301/9025/2c34b.png)
Significance level :![\alpha=0.01](/tpl/images/1301/9025/397ae.png)
Sample size : n= 16
Sample standard deviation : s= 3.6 inches
Using chi-square distribution table , the critical values are:
We know that , confidence interval for the population standard deviation is given by :-
Hence , a 99% confidence interval for the population standard deviation is
.