Researchers in China have been studying the relationship between Covid-19 and blood type. This article states that normal people in Wuhan displayed a percentage distribution of 32.16%, 24.90%, 9.10% and 33.84% for A, B, AB and O, respectively, while the 1,775 patients with COVID-19 from Wuhan Jinyintan Hospital showed an ABO distribution shown below. They hypothesized that distribution of blood type of people with Covid-19 should be similar to that of the population it serves.

Is their hypothesis correct? Use ? =0.05.

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