4. Let X1, X2, ..., X, be a random sample from a normal distribution with known mean H, unknown variance o? and density function 1 fx(x) I ER. Using the log-likelihood, find the maximum likelihood estimator for o?. If the mean is H = 3 and the sample is {r1, 12, 13} = {{-1,2,0.5, 1.5}, what is the estimate for o?

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B4. Let X1, X2, ..., X, be a random sample from a normal distribution with known mean
µ, unknown variance o? and density function
1
fx(x)
IER.
V2no2
Using the log-likelihood, find the maximum likelihood estimator for o?. If the mean is
µ = 3 and the sample is {r1, 2, T3} = {-1.2,0.5, 1.5}, what is the estimate for o??
Transcribed Image Text:B4. Let X1, X2, ..., X, be a random sample from a normal distribution with known mean µ, unknown variance o? and density function 1 fx(x) IER. V2no2 Using the log-likelihood, find the maximum likelihood estimator for o?. If the mean is µ = 3 and the sample is {r1, 2, T3} = {-1.2,0.5, 1.5}, what is the estimate for o??
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