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86 Chapter 1 %u2022 Analyzing One-Variable DataTI-83/84 1. Enter the scoring data for James in list L1 and for%u00a0Jordan in list L2 . 2. Set up two statistics plots: Plot1 to show a boxplot of James%u2019s data and Plot2 to show a boxplot of Jordan%u2019s data. The setup for Plot1 is shown. When you define Plot2, be sure to change L1 to L2.Note: The calculator offers two types of boxplots: one that shows outliers and one that doesn%u2019t. We%u2019ll always use the type that identifies outliers. 3. Press ZOOM and select ZoomStat to display the parallel boxplots. Then press TRACE and use the arrow keys to explore the five-number summary. FIRST PASSStarnesSPA5e_01_un132_01173 - May 4, 2024 YO U R TU R N LE SSO N 1. 8 Which is best at reducing stress? If you are a dog lover, having your dog with you may reduce your stress level. Does having a friend with you reduce stress? To examine the effects of pets and friends in stressful situations, researchers recruited 45 people who said they were dog lovers. Fifteen people were assigned at random to each of three groups: to do a stressful task (1) alone, (2) with a good friend present, or%u00a0(3) with their dogs present. The stressful task was to count backward by 13s or 17s. The person%u2019s average heart rate during the task was one measure of the effect of%u00a0stress. The following table shows the data: 101 Alone 62.6 70.9 73.3 75.5 77.8 80.4 84.5 84.7 84.9 87.2 87.4 87.8 90.0 91.8 99.0 Friend 76.9 80.3 81.6 83.4 87.0 88.0 89.8 91.4 92.5 97.0 98.2 99.7 100.9 101.1 102.2 Pet 58.7 64.2 65.4 68.9 69.2 69.2 69.5 70.1 70.2 72.3 76.0 79.7 85.0 86.4 97.5 1. Show that the value 97.5 is an outlier in the pet distribution. (Note that there are no other outliers in these three distributions.) 2. Make parallel boxplots to compare the heart rates of the people in the three groups. 3. Based on the data, does it appear that the presence of a pet or friend reduces heart rate during a stressful task? Explain your answer. Nisian Hughes/Getty Images%u00a9 Bedford, Freeman & Worth Publishers. For review purposes only. Do not distribute.