Remaining Time: 59 minutes, 06 seconds. Question Completion Status: QUESTION 2 2. In 1991, the Environmental Protection Agency (EPA) published the Lead and Copper Rule (LCR), to minimize lead and copper in drinking water. The rule established an Action Level (AL) of 0.015 mg/L for the mean level of lead in public drinking water. If the level of lead exceeds 0.015 mg/L of public drinking water immediate actions to remediate the issue must be taken. A local environmental group is concerned that the level of lead in their public drinking water might be higher than EPA guidelines and takes a random sample of 35 water samples for evaluation. They find that the samples contain an average of 0.023 mg/L of lead, with a standard deviation of 0.010. What are the null and alternative hypotheses? O Ho: H = 0.015 Ha : [ > 0.015 O Ho: P = 0.015 Ha: p # 0.015 O Ho: P = 0.023 Ha : p # 0.023 O Ho: H = -0.023 Ha: H > 0.023