Let X1, X2, ..., Xn be a random sample from the normal distribution with unknown mean, µ and known variance, o². Using a sufficient statistic for u, find the UMP test in the class of unbiased tests...

PLEASE handwritten picture Thanks.

TYPE HERE It's a messy code.

Extracted text: Let X1, X2, ..., Xn be a random sample from the normal distribution with unknown mean, µ and known variance, o². Using a sufficient statistic for u, find the UMP test in the class of unbiased tests for testing Ho: µ = µo against H1:µ # µo at significance level a.