1.A random sample of size 120 is drawn from a largepopulation with mean 38.75 obtain the sd of the distribution of allpossible sample mean ( let the sample sd be s= 5.28 ) what is thesampling distribution of the mean?
2. In a random sample of size 506, the averagecholesterol level of group of adults is 96.997 if the standarddeviation of the colesterol level in the city adults population is1.74 find the 72% confidence for u
