Directions: Study and analyze each case. Apply the formula necessary to solve the stated problem. Show your solutions on the space provided. Use extra paper if necessary. Mr. V wanted to know the...

Directions: Study and analyze each case. Apply the formula necessary to solve the stated problem. Show your solutions on the space provided. Use extra paper if necessary.

Mr. V wanted to know the average weight (in kilos) of students in LAO University. He took a  random sample of 300 students and discovered that their average weight 55kg with a standard deviation of 0.8kg. Construct a 95% confidence interval for the mean weight of students in the University.