Answer
$H_{o}: µ_{d} = 0$
$H_{a}: µ_{d} > 0$
Work Step by Step
The Null hypothesis is that the mean difference in time spent watching the climber and approach the hinderer toy versus watching the climber approach the helper toy is equal to 0. The Alternative hypothesis is that the mean difference in time spent watching the climber approach the hinderer toy versus watching the climber approach the helper toy is greater than 0.
