2. b Water samples are taken from water used for cooling as it is being discharged from a power plant into a river. It has been determined that as long as the mean temperature of the discharged water is at most 150\" F, there will be no negative effects on the river's ecosystem. To investigate Whether the plant is in compliance With regulations that prohibit a mean discharge-water temperature above 150' , 50 water sample Will be tank at randomly selected times, and the temperature of each sample will be recorded. (a) Determine an appropriate null and alternative hypothesis for this test. (b) In the context of this situation, describe type land type II errors