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...


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





  1. State both the null and alternative hypotheses.

  2. Provide the decision rule for making this decision. Use an alpha level of 5%.



Jun 10, 2022
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