Table 2 Vitamin D levels Optimal >25ng/mL Mild deficiency 10ng/mL-24ng/mL Severe deficiency >10ng/mL Total Hospitalised with COVID-19 No Yes 33 98 25 156 v 0.90 0.95 0.975 0.99 0.995 0.999 1 2.71 3.84 5.02 6.63 7.88 10.83 2 4.61 5.99 7.38 9.21 10.60 13.82 3 6.25 7.81 9.35 11.34 12.84 16.27 4 7.78 9.49 11.14 13.28 14.86 18.47 44 148 12 204 (b) How many degrees of freedom are there? Table 3: Selected Quantiles for chi-squared distributions (c) Using Table 3 above interpret your results Total 77 246 37 360
Table 2 Vitamin D levels Optimal >25ng/mL Mild deficiency 10ng/mL-24ng/mL Severe deficiency >10ng/mL Total Hospitalised with COVID-19 No Yes 33 98 25 156 v 0.90 0.95 0.975 0.99 0.995 0.999 1 2.71 3.84 5.02 6.63 7.88 10.83 2 4.61 5.99 7.38 9.21 10.60 13.82 3 6.25 7.81 9.35 11.34 12.84 16.27 4 7.78 9.49 11.14 13.28 14.86 18.47 44 148 12 204 (b) How many degrees of freedom are there? Table 3: Selected Quantiles for chi-squared distributions (c) Using Table 3 above interpret your results Total 77 246 37 360
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
100%
The value of the test statistic is 10.0808.
Transcribed Image Text:A case control study was carried out to investigate the relationship
between Vitamin D levels and individuals who contracted COVID-19
needing hospitalisation. Table 2 shows the results of the study.
Table 2
Vitamin D levels
Optimal >25ng/mL
Mild deficiency 10ng/mL-24ng/mL
Severe deficiency >10ng/mL
Total
Hospitalised with COVID-19
No
Yes
33
98
25
156
V 0.90 0.95 0.975 0.99 0.995 0.999
2.71 3.84 5.02
2 4.61 5.99 7.38
6.25 7.81 9.35
6.63 7.88 10.83
9.21 10.60 13.82
3
11.34 12.84 16.27
4 7.78 9.49 11.14 13.28 14.86 18.47
44
148
12
204
(b) How many degrees of freedom are there?
Table 3: Selected Quantiles for chi-squared distributions
(c) Using Table 3 above interpret your results
Total
77
246
37
360
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