Instant replay in sports (stats)Presentation Transcript
Instant Replay In Sports Jonathan Nagar Weston McCollum Cody Kustrin De Nguyen
Introduction INSTANT REPLAY: The recording and immediate playback of a part of a live television broadcast of a sporting event (used by officials). ISSUE: Controversial calls continue to affect the outcome of sporting events.
Instant Replay Jurisdiction National Football League (NFL) Each team is allowed two instant replay reviews a game (coach challenges). Challenges can be used on: scoring plays pass completions out-of-bounds plays forward passed fumbles down-by-contact plays forward progress plays touching of a kick and placement of the football.
Instant Replay Jurisdiction Major League Baseball (MLB) Reviews boundary home run calls to determine: Fair (home run) or foul. Whether the ball actually left the playing field. Whether the ball was subject to spectator interference.
Instant Replay Jurisdiction ATP and WTA World Tour Tennis Review calls on balls in or out of the playing surface. National Hockey League (NHL) Review calls on controversial goals scored. National Basketball League (NBA) Review shots made before the buzzer.
Questions To Be Answered Is Instant Replay at an appropriate level in sports? Does Instant Replay have a positive impact on sports? Does Instant Replay ultimately make the games more fair?
Questions To Be Answered Concerns: Does Instant Replay slow down the pace of the game? Is it practical to implement Instant Replay in Division II and III sports?
World Cup: England vs. Germany
Additional Controversies MLB: Detroit Tigers vs. Cleveland Indians Galarraga Perfect Game lost on final call. Philadelphia Phillies vs. Florida Marlins Gaby Sanchez walk off hit ruled foul. (WS) San Francisco Giants vs. Texas Rangers Double play was ruled safe at first base.
Main Research Hypothesis Question: Should Instant Replay be further implemented in sports?
Data Collection & Preparation Collection Methods Used Survey Monkey (Sample Size 40) 10 MC Scaled Response Questions. Used on Facebook as an event. Interviews (Sample Size 20) Target Audience Sports Fans/Followers
Descriptive Statistics How many hours a week do you spend watching sports? 0 to 5 - 13 6 to 10-14 11 to 15- 4 16 to 20 - 6 20+- 3
Descriptive Statistics Mode is 6 to 10 hours Median is 6 to 10 hours Mean is 9.1125
Descriptive Statistics Which sport do you watch the most? Baseball - 11 Basketball - 3 Football - 23 Hockey - 1 Soccer - 1 Tennis - 0 Other - 1
Probability Probability of choosing someone from our data who watches football the most. P(E)=23/40=.575 Probability of choosing someone that does not watch football the most. Using the complement rule: P(E)=1-P(E)=.425
Descriptive Statistics Have you ever played sports at a competitive level? Yes - 32 No - 8
Descriptive Statistics Instant replay has a positive impact on sports. Strongly Agree - 23 Somewhat Agree - 14 No Opinion - 2 Somewhat Disagree - 1 Strongly Disagree - 0
Hypothesis Test for Positive Impact
Descriptive Statistics Instant replay is at an appropriate level in sports. Strongly Agree - 5 Somewhat Agree - 24 No Opinion - 5 Somewhat Disagree - 5 Strongly Disagree - 1
Hypothesis Test for Appropriate Level
Descriptive Statistics Instant replay slows down the pace of the game. Strongly Agree - 11 Somewhat Agree - 15 No Opinion - 1 Somewhat Disagree - 11 Strongly Disagree - 2
Hypothesis Test for Pace of Game
Descriptive Statistics It is practical to implement instant replay in Division 2 and 3. Strongly Agree - 5 Somewhat Agree - 12 No Opinion - 7 Somewhat Disagree - 7 Strongly Disagree - 9
Descriptive Statistics Instant replay ultimately makes the games being played more fair. Strongly Agree - 19 Somewhat Agree - 17 No Opinion - 2 Somewhat Disagree - 2 Strongly Disagree - 0
Hypothesis Test for Fairness
Conclusion and Recommendations The average (mean) for hours of sports watched per week was 9.1125 75% of the sample played sports at a competitive level at some point in their lives. 37 of the 40 people surveyed agreed that instant replay has a positive impact on sports. 65% also agreed that usage of instant replay slows down the game.
Conclusions and Recommendations 29 of the 40 people sampled agreed that instant replay is at an appropriate level at this time. 23 of 40 feel that it is not practical to implement instant replay in Division II and Division III sports. 95% of the sample agreed that instant replay corrects mistakes made by officials. 90% of the people surveyed agreed that instant replay makes the gameplay more fair.
Conclusions and Recommendations Given the data collected, we determined that instant replay should be implemented across all professional sports. For the sports in which instant replay is already utilized, it should be refined and used to a further degree. As a group, we collectively believe in the usage of instant replay for professional and college sports.
Suggestions for Improving Study Conduct survey to broader age groups. Ask more questions regarding each sport individually. Acquire a larger sample size with more participants.