Suppose a city's environmental engineers are studying the amount of lead in drinking water. An acceptable amount being 34 parts per million. Analyses of drinking water samples for 75 homes in a neighborhood of the city gave the following information on lead levels (in parts per million): S ample Size: 75 Mean: 36.5 S tandard Deviation: 6 The environmental engineers set up the null and alternative hypotheses as follows: H 0: = 34 H a: > 34 They find that the p-value = 0.0003 and use an =0.01 level of significance. Do the environmental engineers have enough evidence to say the levels of lead in the water are significantly higher than the standard? Since the p-value < , there is insufficient evidence that the levels of lead are significantly higher than the standard. Since the p-value < , there is sufficient evidence that the levels of lead are significantly higher than the standard. Since the p-value > , there is insufficient evidence that the levels of lead are significantly higher than the standard. Since the p-value > , there is sufficient evidence that the levels of lead are significantly higher than the standard