4. The length of pieces of wood (in feet) follow a N(µ = 8.1, σ = 0.1) distribution. Determine the 33rd percentile of the lengths. 5. In reference to question (4), suppose 16 pieces of wood are...

4. The length of pieces of wood (in feet) follow a N(µ = 8.1, σ = 0.1) distribution. Determine the 33rd percentile of the lengths.

5. In reference to question (4), suppose 16 pieces of wood are randomly selected (assume independence). Find the probability that the mean length X¯ is more than 8.03 feet