An experiment was conducted to determine whether the price of a golf club affected the distance a golfer could hit a golf ballA sample of 60 golfers were randomly assigned to one of two groups. Cor E The 30 golfers in group were given a club and told the price of the club was cheapthe 30 golfers in group E were given the same club told the price of the club was expensiveIn realitythere was no difference in price The golfers used their assigned clubs to hit a golf ball as far as they could The distance, in yards, that each golfer hit the golf ball was recorded and the mean distance calculated for each groupA - sample t-test for a difference in means will be conducted Which of the following statements are true? 1. The data were collected using random assignment 2. The data were collected using random selection 3. The distribution of the difference in sample means will be approximately normal