Behavioral testing in rodents is one of the necessary steps needed for the creation of new medication. To test a pharmaceutical intervention, the researcher performs an assortment of specialized behavioral mazes designed for rodent behavior testing. The researcher is interested in how long a mouse takes to get through a maze. For one particular maze, the mean time is 17 seconds. A researcher wants to test if an increased dose will help the mice to complete the maze in less than 17 seconds. She measures the average time 16 seconds required for 49 mice to complete the maze when the loud noise is played. Assume that the population standard deviation is known and is 4.

what is the p value

Which is a suitable null hypothesis in this situation?

Which is a suitable alternative hypothesis in this situation?