# data[].attributes.body
Q2) What is your X2 and critical values? Is the X2? Higher or lower than your critical value? are you sure you should reject your null hypothesis?
Q4) Last expected ratio is incorrect (should be 0.25/0.5/0.5) so your other calculations won't be right

# data[].attributes.attachment_link.title
Group 1 Xinyi Zhao, Yekai Yu, Chieh-Chun Yeh

# data[].attributes.headline
Should you reject your null hypothesis or not? Here's a summary of your observed and expected data a 0.01:

# data[].attributes.subject
Should you reject your null hypothesis or not? Here's a summary of your observed and expected data a 0.01: