PLEASE SEE DOCUMENT 1 AND 2

PLEASE SEE DOCUMENT 1 AND 2

PLEASE SEE DOCUMENT 1 AND 2
WEEK 1 ASSIGNMENT Directions: Answer the questions below. When applicable, p lease show all your work. Section 2.1 1. (3 point) Consider the mode, median, and mean. Which average represents the middle value of a data distribution? Which average represents the most frequent value of a distribution? Which average takes all the speci fic values into account? 2. (3 points) Critical Thinking: The following data represent salaries, in thousands of dollars, for employees of a small company. Notice the data have been sorted in increasing order. 24 25 25 27 27 29 30 35 35 35 36 38 38 39 39 40 40 40 45 45 45 45 47 52 52 52 58 59 59 61 61 67 68 68 68 250 (a) Make a histogram using the class boundar ies 23.5, 69.5, 115.5, 161.5, 207.5, 253.5. (b) Look at the last data value. Does it appear to be an outlier? Could this be the owner’s salary? Section 2.2 3. (2 points) Critical Thinking: A personnel office is gathering data regarding working conditions. Employees are given a list of five conditions that they might want to see improved. They are asked to select the one item that is most critical to them. Which type of graph, circle graph or Pareto chart, would be most useful for displaying the results of the survey? Why? 4. (1 point) Critical Thinking Your friend is thinking about buying shares of stock in a company. You have been tracking the closing prices of the stock shares for the past 90 trading days. Which type of graph for the data, histogram or time -series, would be best to show your friend? Why? 5. (3 Points) College Professors’ Time: How do college professors spend their time? The National Education Association Almanac of Higher Education gives the following average distribution of professional time a llocation: teaching, 51%; research, 16%; professional growth, 5%; community service, 11%; service to the college, 11%; and consulting outside the college, 6%. Make a pie chart showing the allocation of professional time for college professors. Section 2.3 6. (3 points) Longevity: How long did real cowboys live? One answer may be found in the book The Last Cowboys by Connie Brooks (University of New Mexico Press). This delightful book presents a thoughtful sociological study of cowboys in West Texas and Southeastern New Mexico around the year 1890. A sample of 32 cowboys gave the following years of longevity: 58 52 68 86 72 66 97 89 84 91 91 92 66 68 87 86 73 61 70 75 72 73 85 84 90 57 77 76 84 93 58 47 (a) Make a stem -and -leaf display for these data. Section: Chapter Review 7. (2 points) Critical Thinking Consider these types of graphs: histogram, bar graph, Pareto chart, pie ch art, stem -and -leaf display. (a) Which are suitable for qualitative data? (b) Which are suitable for quantitative data?