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 effect of pets and friends in stressful situations, researchers recruited 45 women who said they were dog lovers. Fifteen women were assigned at random to each of the three groups: to do a stressful task alone, with a good friend present, or with their dog present. The stressful task was to count backward by 13s or 17s. The woman's average heart rate during the task was the measure of interest. Based on the data, does it appear that the presence of a pet or friend reduces heart rate during a stressful task? 1. Construct 3 histograms, displaying the heart rates of women in the three groups (note: go to graph, histogram, choose 'heart rates' and then group by: group) 2. Find the mean, standard deviation, median, and IQR of the heart rates of the women in the three groups. Attach work or technology screenshot. 3. Use the histogram and summary statistics to describe the shape, center and spread of the heart rates of the women in the three groups (note: if there are outliers, use median and IQR and if there are not, you can use mean and standard deviation). 4. Use the mean and standard deviation from #2 and the range rule of thumb (?−2? ??? ?+2?) to identify the limits separating values that are significantly low or significantly high. 5. Construct 3 box plots, comparing the heart rates of the women in the three groups (follow note from #1). Mention any outliers. 6. Based on your findings, does it appear that the presence of a pet or friend reduces heart rate during a stressful task? Justify your answer. Group Heart Rate C 80.369 C 87.446 C 90.015 C 99.046 C 87.231 C 91.754 C 87.875 C 77.8 C 84.738 C 84.877 C 73.277 C 84.523 C 70.877 C 75.477 C 62.646 F 99.692 F 83.4 F 102.154 F 80.277 F 91.354 F 100.877 F 101.062 F 97.046 F 89.815 F 98.2 F 76.908 F 88.015 F 81.6 F 86.985 F 92.492 P 69.169 P 70.169 P 75.985 P 86.446 P 68.862 P 64.169 P 97.538 P 85 P 58.692 P 79.662 P 69.231 P 69.538 P 70.077 P 72.262 P 65.446
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 effect of pets and friends in stressful situations, researchers recruited 45 women who said they were dog lovers. Fifteen women were assigned at random to each of the three groups: to do a stressful task alone, with a good friend present, or with their dog present. The stressful task was to count backward by 13s or 17s. The woman's average heart rate during the task was the measure of interest.
Based on the data, does it appear that the presence of a pet or friend reduces heart rate during a stressful task?
1. Construct 3 histograms, displaying the heart rates of women in the three groups (note: go to graph, histogram, choose 'heart rates' and then group by: group)
2. Find the
3. Use the histogram and summary statistics to describe the shape, center and spread of the heart rates of the women in the three groups (note: if there are outliers, use median and IQR and if there are not, you can use mean and standard deviation).
4. Use the mean and standard deviation from #2 and the
5. Construct 3 box plots, comparing the heart rates of the women in the three groups (follow note from #1). Mention any outliers.
6. Based on your findings, does it appear that the presence of a pet or friend reduces heart rate during a stressful task? Justify your answer.
Group Heart Rate
C 80.369
C 87.446
C 90.015
C 99.046
C 87.231
C 91.754
C 87.875
C 77.8
C 84.738
C 84.877
C 73.277
C 84.523
C 70.877
C 75.477
C 62.646
F 99.692
F 83.4
F 102.154
F 80.277
F 91.354
F 100.877
F 101.062
F 97.046
F 89.815
F 98.2
F 76.908
F 88.015
F 81.6
F 86.985
F 92.492
P 69.169
P 70.169
P 75.985
P 86.446
P 68.862
P 64.169
P 97.538
P 85
P 58.692
P 79.662
P 69.231
P 69.538
P 70.077
P 72.262
P 65.446
Note:
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Given data,
| C | F | P |
| 80.369 | 99.692 | 69.169 |
| 87.446 | 83.4 | 70.169 |
| 90.015 | 102.154 | 75.985 |
| 99.046 | 80.277 | 86.446 |
| 87.231 | 91.354 | 68.862 |
| 91.754 | 100.877 | 64.169 |
| 87.875 | 101.062 | 97.538 |
| 77.8 | 97.046 | 85 |
| 84.738 | 89.815 | 58.692 |
| 84.877 | 98.2 | 79.662 |
| 73.277 | 76.908 | 69.231 |
| 84.523 | 88.015 | 69.538 |
| 70.877 | 81.6 | 70.077 |
| 75.477 | 86.985 | 72.262 |
| 62.646 | 92.492 | 65.446 |
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