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  βˆ0

Question 10 options:

0.4367

-0.2198

0.1827

-0.8928

0.6741

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 -0.8928

The estimate = -0.8928

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