A proposed null hypothesis states that there is no difference in the water consumption of households in two districts. The sample mean difference is 8.5 liters, and the standard deviation of the distribution of the difference in sample means is 4.5 liters.

Classify each action depending on whether it will meet or fail to meet the goals of the organization. a group of students form a healthy earth club at their school. their goal is to limit their school’s impact on human-led climate change. they brainstormed a list of actions they can take to meet this goal.