Answer
$H_{o}$: The mean length of the baseball team’s games is greater than or equal to 2.5 hours.
$H_{a}$: The mean length of the baseball team’s games is less than 2.5 hours
$H_{o}: μ \geq 2.5$, $H_{o}: μ \lt 2.5$
Left-tailed because the alternative hypothesis contains less than sign.
Work Step by Step
As given above