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

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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