1. During the manufacturing process, a 2-pound bag of tortilla chips is filled with a standard deviation of 5 ounces. We randomly sample 125 bags from this population and compute the mean, then repeat this process 1,000 times and records all the means. What is the best approximation of the mean of our 1,000 sample means?

2. During the manufacturing process, a 2-pound bag of tortilla chips is filled with a standard deviation of 5 ounces. We randomly sample 125 bags from this population and compute the mean, then repeat this process 1,000 times and records all the means. What is the approximation for the standard deviation of the 1,000 sample means? Round to 2 decimal places.

3. Before a movie is made, a budget is established to estimate the cost of making the movie. In order to know if a producing a film will result in a profit, it is helpful to predict the gross sales. The budget of a movie can be helpful to predict the domestic gross sales. Use the file 'Movie Budgets and Box Office Earnings' to predict the worldwide gross sales of a movie with a budget of $150 million dollars. Round to 2 decimal places.