6. Application The results of a standardized test were normally distributed, with mean 504 and standard deviation 110. a) Sketch the normal distribution of the test scores. Label the mean and the points that are 1, 2, and 3 standard deviations from the mean. b) What percent of students had scores in each range? 1) less than 614 in) greater than 504 ili) greater than 284 iv) between 394 and 724 c) Estimate the range of test scores