Identify potential outliers, if any, for the given data. The weekly salaries (in dollars) of sixteen government workers are listed below. 690 567 813 646 728 552 453 593 500 666 685 369 529 787 471 986 O 369, 986 O 986 O 369 None

The following data represents the age of 30 lottery winners.   23 29 33 34 34 37 38 39 41 43 48 50 50 51 52 52 53 54 54 57 57 60 60 61 64 65 66 66 77 82   Complete the frequency distribution for the data. Bin Frequency 20-29   30-39   40-49   50-59   60-69   70-79   80-89

1. Construct a frequency distribution using the ages of 50 richest people in the world in 2009. Using 8 classes. Also find class boundaries, mid points, relative frequency and cumulative frequency. 90 89 87 86 86 85 83 83 82 81 80 78 78 77 76 73 73 73 72 69 69 68 67 66 66 65 65 64 63 61 61 60 59 58 57 56 54 54 53 53 51 51 49 47 46 44 43 42 36 35 2. Following data represents the weights (in pounds) of 40 female students at a university. Construct a grouped frequency distribution for the data using 7 classes. Also find class boundaries, mid points, relative frequency and cumulative frequency of each class. 100 75 70 60 70 95 85 80 35 45 45 55 30 110 75 100 40 60 65 40 40 50 60 65 55 45 90 85 75 85 75 70 110 100 80 70 55 30 70 100 3. Construct frequency distribution, with 6 classes. Also find class boundaries, mid points, relative frequency and cumulative frequency of each class. 65 91 85 76 85 87 79 93 82 75 100 70 88 83 59 87 69 89 54 74 89 80 94 67 77 92 82 70 94 84 96 98 46 70 90 96…

The manager of Hudson Auto Repair would like to get a better picture of the distribution of costs for new parts used in the engine tune-up jobs done in the garage. A sample of 50 customer invoices for tune-ups has been taken and the costs of parts, rounded to the nearest dollar, are listed below. 91 78 93 57 75 52 99 80 73 62 71 69 72 89 66 75 79 75 72 76 104 74 62 68 97 105 77 65 80 109 85 97 88 68 83 68 71 69 67 74 62 82 98 101 79 105 79 69 62 73 Develop a frequency distribution for these cost data. Use your own judgment to determine the number of classes and class width that provide a distribution that will be meaningful and helpful to the manager. a. Develop a stem-and-leaf display showing both the rank order and shape of the data set. (3) b. Develop a stretched stem-and-leaf display using two stems for each leading digit(s). (2) c. Which display is better at revealing the natural grouping and variation in the data? (1)