Use this data for #1,2,3
Student Group A: 56, 14, 26, 28, 29, 45, 32, 80, 3, 10
Student Group B: 27, 24, 18, 19, 5, 16, 22, 10, 6, 20
1. Find mean of group A and B (tenth) and find their difference
2. Find range of each student group and tell which group is more inconsistent
3. Find the median of each student group, (tenth if needed) and find their difference in medians
4. A large company wants to find the favorite animal of their employees…would surveying every 5th women who uses the copier, be a random, representative sample? explain your answer.
5. 50 students are randomly selected and 4 own cats. If there are 800 students, how many of them own cats?
rewrite all of them with the answers added
1. The mean of Student Group A is 29.3 and the mean of Student Group B is 16.7. The difference in means is 12.6.
2. The range of Student Group A is 77 and the range of Student Group B is 22. Student Group A is more inconsistent.
3. The median of Student Group A is 28.5 and the median of Student Group B is 17. The difference in medians is 11.5.
4. No, surveying every 5th women who uses the copier would not be a random, representative sample because it would only capture the opinions of a specific group of women (those who use the copier) and may introduce bias into the survey results.
5. If 4 out of 50 students own cats, then the proportion of students who own cats is 4/50. So, if there are 800 students, approximately 64 of them would own cats.