Question:
Based on the premise "They should be ashamed.", can we conclude that "They spread rumors about that person."?
****
Answer:
it is not possible to tell

Question:
Based on the premise "Then she turned abruptly away. ", can we conclude that "She looked away around almost instantaneously."?
****
Answer:
it is not possible to tell

Question:
Based on the premise "The credibility and authenticity of the case study report may depend on the writer's having provided extensive detail and description, making unexpected conclusions as difficult to deny as if the reader had been part of the event.", can we conclude that "The writer's detail and description decide the credibility and authenticity of the case."?
****
Answer:
yes