a. Construct a boxplot for the annual expenditures variable. Does the boxplot suggest that outliers exist?

multiple choice 1 No outliers exist. An outlier exists in the upper part of the distribution. An outlier exists in the lower part of the distribution. Outliers exist in both the lower and upper part of the distribution.

b-1. Use z-scores to determine if there are any outliers for the annual expenditures variable. (Round final answers to 2 decimal places. Negative amounts should be indicated by a minus sign.) b-2. The z-scores for the minimum and maximum observations suggest that:

multiple choice 2 no outliers exist. an outlier exists in the upper part of the distribution. an outlier exists in the lower part of the distribution. outliers exist in both the lower and upper part of the distribution.

b-3. Which of the following statements is most accurate with respect to outliers in this example?

multiple choice 3 The boxplot and zscores provide consistent results. The boxplot is more reliable because the distribution is not symmetric. The zscores are more reliable because the distribution is not symmetric. The zscores are more reliable because the distribution is symmetric. Customer Expenditures 1 1282 2 1082 3 1220 4 1091 5 1242 6 1222 7 721 8 1684 9 589 10 1320 11 1768 12 1314 13 1552 14 1550 15 1687 16 1633 17 1223 18 723 19 1305 20 1324 21 980 22 1253 23 1187 24 1120 25 1254 26 1658 27 1683 28 1485 29 1999 30 1082 31 814 32 700 33 1289 34 1666 35 813 36 1062 37 1148 38 878 39 1141 40 1602 41 1061 42 1948 43 1510 44 1209 45 1252 46 1321 47 1012 48 1662 49 788 50 1427 51 1706 52 1980 53 1005 54 1731 55 1640 56 1436 57 1280 58 1389 59 1258 60 1112 61 1187 62 1437 63 1463 64 834 65 635 66 1016 67 927 68 435 69 1619 70 1807 71 1752 72 1592 73 1642 74 1096 75 1447 76 1305 77 1426 78 2051 79 1320 80 1243 81 1692 82 1590 83 1158 84 1700 85 1108 86 1194 87 1709 88 1600 89 1217 90 1530 91 1348 92 1553 93 892 94 935 95 1481 96 1072 97 922 98 1111 99 1640 100 1467