1 For a random variable with 11028 and 2541 calcualte EX i

1. For a random variable with = 110.28 and = 25.41, calcualte E(X¯¯¯) if the sample size is 37

2. For a random variable with a large population with = 116.75 and = 29.93, calcualte X¯¯¯ if the sample size is 37

Solution

1)

E(X-bar) = = 110.28 Answer

2)

(X-bar) = /sqrt(n) = 29.93 / sqrt(37) = 4.92 Answer