Lacrosse PLL vs. NLL

The data set looks at both lacrosse leagues, their respective teams, and their shot and goal amounts.

Motivation

This data set examines the goals and shots in two prominent lacrosse leagues: the Premier Lacrosse League (PLL) and the National Lacrosse League (NLL).

The PLL and NLL are highly regarded professional lacrosse leagues that feature top-tier athletes from around the world. The PLL is played in an indoor, smaller field while the NLL plays on an outdoor field with traditional dimensions. This data set allows for an analysis of goal-scoring within these leagues.

Data

The data set has 162 rows with 9 columns. Each row represents a single lacrosse match either in the Premier Lacrosse League or the National Lacrosse League for the 2021 - 2022 season. NLL seasons typically run from December to May while PLL seasons typically run from June to September.

lacrosse_pll_nll_2021-2022.csv

Variable	Description
League	The Premier Lacrosse league and the National Lacrosse League
Away_team	The traveling team
Home_team	The hosting team
Away_shots	How many shots the Away_team had on net
Home_shots	How many shots the Home_team had on net
Away_goals	How many goals the Away_team had on net
Home_goals	How many goals the Home_team had on net
goals_per_game	The total amount of goals scored each game
goals_per_48	The average amount of goals for the first 48 minutes of a game

Questions

1. Do these data provide evidence that, on average, goals scored in the PLL and NLL differ? Include all details of the appropriate hypothesis test.

2. Construct and interpret a 95% confidence interval in average goals for NLL and PLL lacrosse games per 48 minutes.

References

Premier Lacrosse League stats. Premier Lacrosse League Stats. (n.d.). https://stats.premierlacrosseleague.com/

Player stats. NLL. (2023, January 26). https://www.nll.com/stats/all-player-stats/