1. The following data represents 18 emotional intelligence 31 47 53 57 61 67 test scores. Organize these data into a class interval 40 49 55 58 62 68 frequency distribution using 3 intervals with frequency 41 50 56 58 64 70 (f) and relative frequency (rf) columns.ANSWER: Fill in the yellow cells: Class Intervals (use rf (round to whole numbers 2 decimals) ANSWER ANSWER ANSWER ANSWER ANSWER ANSWER ANSWER ANSWER ANSWER N = 18 2. What is the class width? ANSWER What is the upper class limit of the first interval? Answer the following question related to your assigned readings and presentations. 3. What do the following symbols a. ANSWER represent? b. ANSWER a. N b. u Use the following five (5) numbers to calculate the following by hand (must show all work and do NOT round) 3 3 4 5 9 4. Calculate all measures of ANSWER central tendency. Label each one. 5. Is this data best described as ANSWER normal, positively skewed, or negatively skewed? How does your previous answer confirmCalculate the range and ANSWER average deviation. Show all work. Calculate the standard ANSWER deviation using the formula from ch.5 . Show all work. State two ways the standard ANSWER deviation differs from the average deviation. Students in the psychology department consume an average of 5 cups of coffee per day with a standard deviation of 1.75 cups. The number of cups of coffee consumed is normally distributed. Make sure you do NOT round when answering any of these questions. When applicable, show ALL work for full points. Nancy drank 6 cups of coffee. What proportion of students ANSWER drank FEWER cups of coffee than Nancy? (do not round and use the table in the appendix of the Jackson e-book) 10. Which of the following curves (A, B, or C) best illustrate ANSWER where Nancy' 5 data would be? How many cups of coffee would an individual at the 80th ANSWER percentile rank drink? (do NOT round) 12 Imagine this course is over and instead of seeing your total ANSWER points earned. you are given a z score and the grade is curved to t a normal distribution. What would you want your 2 score to be and why? (make sure you use a numerical value and indicate whether it is positive or negative)