Question

TO Wuston Hop The accompanying data represent the pulse rates (beats per minute) of nine students. Treat the nine students as a population. Compute the z-scores for all the students Compute the mean and standard deviation of these Z-scores. Click the icon to view the datatable. Pulse Rates Compute the z-scores for all the students. Complete the table. Student -core Student 2-core Student 1 Student 6 Student 2 Student 7 Student 3 Student 4 Students (Round to the nearest hundredth as needed.) Student Student 1 Student 2 Student Sudent 4 Students Student Student Student Student Enter your answer in the edit fields and then click Check 2 Darts remaining Pearson Copyright 2020 Pearson Education Inc. All rights reserved. Terms of Use Privacy Policy Permissions Contact Us

Answer 1

Solution:

Mean of pulse rate of 9 student($\mu$)=

76 +61 + 60....... +73 650 = - = 72.22

489.55 o=V1 (76 – 72.22)2 + (61 – 72.22)2 + ....... + (73 – 72.22)2 - V 9 7.375
computation of z score for nine students

Formula to compute z score is

Z-!-H

Student 1. Z= (76-72.22)/7.375 = 0.51

Student 2. Z= (61-72.22)/7.375 = -1.52

Student 3. Z= (60-72.22)/7.375 = -1.66

Student 4. Z= (80-72.22)/7.375 = 1.05

Student 5. Z= (72-72.22)/7.375 = -0.03

Student 6. Z= (80-72.22)/7.375 = 1.05

Student 7. Z= (80-72.22)/7.375 = 1.05

Student 8. Z= (68-72.22)/7.375 = -0.57

Student 9. Z= (73-72.22)/7.375 = 0.11

The mean of z score will be 0.

The standard deviation of z score Will be 1.