researcher was interested in studying if there is a significant relationship between the severity of COVID 19 and blood types of individuals. 2400 individuals were studied and the results are shown below.
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Question 2
A researcher was interested in studying if there is a significant relationship between the severity of COVID 19 and blood types of individuals. 2400 individuals were studied and the results are shown below.
|
Condition |
Blood Type |
Blood Type |
Blood Type |
Blood Type |
Blood Type |
|
O |
A |
B |
AB |
Total |
|
|
Critical |
64.00 |
44 |
20 |
8 |
136 |
|
Severe |
175.00 |
129 |
50 |
15 |
369 |
|
Moderate |
211.00 |
528 |
151 |
125 |
1015 |
|
Mild |
200.00 |
400 |
140 |
140 |
880 |
|
Total |
650.00 |
1101 |
361 |
288 |
2400 |
- State both the null and alternative hypotheses.
- Provide the decision rule for making this decision. Use an alpha level of 5%.
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