suppose that a random sample of size 20 is taken from a normal distribution with unknown varriance equal to 1 and the mean is found to be x /o.

suppose that a random sample of size 20 is taken from a normal distribution with unknown varriance equal to 1 and the mean is found to be x /o. A normal distribution was used as the prior for the mean, and the posterior standard deviation was 0.1 what were the mean and standard deviation of the prior