Question
Data on ICU hospitalization (X) and number of death (Y) for 5 days due to COVID-19...
Data on ICU hospitalization (X) and number of death (Y) for 5 days due to COVID-19 is given.
| Date | In ICU (X) | Death (Y) |
| 04/25 | 50 | 21 |
| 04/26 | 80 | 35 |
| 04/27 | 87 | 31 |
| 04/28 | 92 | 45 |
| 04/29 | 118 | 50 |
| Total | 427 | 182 |
Find estimate βˆ1
Question 9 options:
|
0.6741 |
|
|
-0.8928 |
|
|
0.1827 |
|
|
0.4367 |
|
|
-0.2198 |
Homework Answers
Answer #1
Solution:
| X | Y | XY | X^2 | Y^2 |
| 50 | 21 | 1050 | 2500 | 441 |
| 80 | 35 | 2800 | 6400 | 1225 |
| 87 | 31 | 2697 | 7569 | 961 |
| 92 | 45 | 4140 | 8464 | 2025 |
| 118 | 50 | 5900 | 13924 | 2500 |
| n | 5 |
| sum(XY) | 16587.00 |
| sum(X) | 427.00 |
| sum(Y) | 182.00 |
| sum(X^2) | 38857.00 |
| sum(Y^2) | 7152.00 |
| Numerator | 5221.00 |
| Denominator | 5613.91 |
| r | 0.9300 |
| r square | 0.8649 |
| Xbar(mean) | 85.4000 |
| Ybar(mean) | 36.4000 |
| SD(X) | 21.8687 |
| SD(Y) | 10.2684 |
| b | 0.4367 |
| a | -0.8929 |
The estimate 
= 0.4367
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Similar Questions
Data on ICU hospitalization (X) and number of death (Y) for 5 days due to COVID-19...
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