1. Find the z-score for an IQ test score of 125 when the mean is 100 and the standard deviation is..

1. Find the z-score for an IQ test score of 125 when the mean is 100 and the standard deviation is 15. (Round to the nearest decimal number with two decimal places.) 2. A test has been devised to measure a student's level of motivation during high school. The motivation scores on this test are approximately normally distributed with a mean of 25 and a standard deviation of 6. The higher the score the greater the motivation to do well in school. Answer 3. What percentage of students taking this test will have scores below 15? (Round your answer to the closest decimal number with 4 decimal places.) 4. What percentage of students taking this test will have scores between 10 and 20? (Round to the nearest decimal number with 4 decimal places.) 5. What percentage of students taking this test will have scores above 30? (Round to the nearest decimal number with 4 decimal places.) 6. John is told that 30% of the students taking the test have higher motivation scores than he does. What was John's score? (Round to the nearest integer)