For Each of the Studies Below, Answer the Four Key

For each of the studies below, answer the four key questions:

Q-Question type
S-Study type
T-Type of data
N-Number of Samples or Treatments
-In some dogs, tail-chasing is a repetitive behavior that is expressed as circling with the dog's attention directed towards its tail. Tail-chasing is reported more frequently in certain dog breeds, and some veterinarians believe this behavior may have a genetic basis. It is also possible that there re biochemical factors leading to the behavior. In a clinical study, 15 dogs of various breeds exhibiting tail-chasing behavior were identified.

After a fasting period of 12 to 16 hours, blood samples were taken from each dog and total cholesterol was measured. Blood samples were also taken from fifteen dogs that did not exhibit tail-chasing behavior. Tail chasing dogs had significantly higher mean total cholesterol than dogs who did not chase their tails.