An equestrian enthusiast is interested in the racing times of horses. She believes an older horse will have a faster race time than a younger horse. She selects a random sample of 17 sibling pairs of...

Extracted text: An equestrian enthusiast is interested in the racing times of horses. She believes an older horse will have a faster race time than a younger horse. She selects a random sample of 17 sibling pairs of adult horses and records their times for running on the same track. The mean difference (older – younger) in the times to run the track is –15.7 seconds with a standard deviation of 8.3 seconds. What are the hypotheses the equestrian should use? O Ho: H Diff = 0 ; H,i H Diff 0 O Ho: Holder =H Youngeri Hai HolderHYounger O Ho: Holder =H Youngeri Ha: Holder <>