please answer, remember that normal curves need to be drawn for all questions.

6. Describe the shape of the normal curve. 7. What is the empirical rule? Explain in 2-3 sentences what it means. 8. In terms of the standard deviation, where does a z-score of -0.62 fall? (#9-12) A tire manufacturer believes that the tread life of snow tires can be described by a Normal model with mean of 32,000 miles and standard deviation of 2,500 miles. 9. make two 84% statements. 10. make one 5% statement. 11. make one 32% statement. 12. make two 47.5% statements. 2