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DAH EXAM Due Sunday JUNE 26TH 11:59PM EACH DAY LATE or INCORRECT FORMAT will LOSE 10 pts No EXAM will be accepted after Monday JUNE 27TH . Directions: Answer all questions. Show all work as necessary for your explanation. If symbols are needed in representation of your solution, either describe the symbol...(e.g., x bar, for sample mean) or construct appropriate symbol using the equation editor in WORD. (This is NOT a requirement). Finally round all final answers to the nearest TWO decimals. Submit ANSWER Sheet NOT questions. (100pts) For questions 1 to 5, use the STUDENT INTEREST SURVEY and DATA found in Appendix E of the Textbook (pages A1 13- A115. Questions: 1. For the variables GIFT and GENDER, describe the target population (see survey questions 4 and 10 A113). (2pts) 2. Identify the variable type for the variables GIFT and GENDER. (2pts) 3. Construct a back-to-back Stem-and-Leaf Display for GIFT by GENDER. Use the HUNDREDS place for the Stem. Label the axes for the variables. (8pts) 4. For the variable GIFT, compute the values for items "A" to "M". Include the appropriate symbol and unit of measurement where applicable. (39pts) A. MEAN B. MEDIAN C. MODE D. RANGE E. STANDARD DEVIATION F. VARIANCE G. Ex2 _ Ex H. E(x - mean) I. E(x - mean)? J. THE FIVE NUMBER SUMMARY K. THE INTERQUARTILE RANGE L. OUTLIERS M. PERCENTIL RANK OF $200. 5. A. For the variable GIFT, construct a Histogram using a class width of 50. Scale the horizontal axis starting from the lowest class boundary. Label the axes. (8pts) B. Describe the shape of the graph found in question 5. (3pts) 6. A sample of the number of minutes spent on TikTok per day of college students is collected. A SUMMARY of the SAMPLE RESULTS is given in the following table: Minutes Spent on TikTok | 21 45 63 117 153 17 per day Z Score 1.5 -0.5 0 1.5 2.5 3 Percentile Rank 5 25 30 50 75 95 By inspection of the table, determine (The numbers in the table DO NOT REPRESENT ALL THE SAMPLE DATA VALUES): a) The mean time spent on TikTok for ALL students in the sample. (2pts) b) The median time spent on TikTok for ALL students in the sample. (2pts) C) The percent of college students in the sample that spend between 52 and 136 minutes per day on TikTok. (2pts) d) The number of minutes per day representing the 1ST quartile. (2pts) e) The sample standard deviation. (2pts) The interquartile range. (2pts) g) The number of minutes per day for a z score of 4. (2pts) The number of minutes per day that is 1.1 standard deviations below the mean. (2pts)