For an SRS {Y: 3;=, from the normal distribution. Si= 1 fy (y;u, 0²) = ==// (Y-M) 2² 2 e √22√52 Show that the sample mean I is an efficient estimator,

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3 For an SRS 4:³;=, from the normal distribution
7/2/2 (Y-M) ²
2
fy (y;u, 0²) -
▷
TIN
1
vážvože
е
Show that the sample mean I is an efficient estimator.
Transcribed Image Text:3 For an SRS 4:³;=, from the normal distribution 7/2/2 (Y-M) ² 2 fy (y;u, 0²) - ▷ TIN 1 vážvože е Show that the sample mean I is an efficient estimator.
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