Mathematics, 12.12.2020 17:10 chl75
[9] X is a Gaussian random variable with variance 0.25. The mean of X is estimated by taking the sample mean of independent samples of X. If the mean needs to be estimated within 0.01 from the actual mean with a confidence coefficient of 0.99, find the minimum number of samples needed in the estimation.
Answers: 1
 
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![n = [\frac{Z_{\frac{\alpha }{2} } * \sigma }{E} ] ^2](/tpl/images/0977/7948/a50a9.png)
![n = [\frac{2.58 } * 0.5 }{0.01 } ] ^2](/tpl/images/0977/7948/8b0ff.png)
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[9] X is a Gaussian random variable with variance 0.25. The mean of X is estimated by taking the sam...
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