\fExercise 3-89 Static The accompanying data file shows the annual expenditures (Expenditures in $) for 100 Amazon prime customers. Click here for the Excel Data File a. Construct a boxplot for the expenditures variable. Does the boxplot suggest that outliers exist? O No outliers exist. O An outlier exists in the upper part of the distribution. O An outlier exists in the lower part of the distribution. O 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 expenditures variable. (Round final answers to 2 decimal places. Negative amounts should be indicated by a minus sign.) z-score for the minimum observation z-score for the maximum observationb2. The z-scores for the minimum and maximum observations suggest that: a no outliers exist. A an outlier exists in the upper part of the distribution. r' an outlier exists in the lower part of the distribution. r' outliers exist in both the lower and upper part of the distribution. b3. Which of the following statements is most accurate with respect to outliers in this example? A The boxplcit and z-scores provide consistent results. ' The boxplcit is more reliable because the distribution is not symmetric. ' The z-scores are more reliable because the distribution is not symmetric. '1" The Z-SCOTES are more reliable because the distribution is symmetric