A researcher is interested in determining the effects of sleep deprivation on the length of time it takes rats to correctly travel a maze to its end point. The researcher wants to know whether the amount of sleep deprivation makes a difference in the speed with which the rats correctly travel the maze. The researcher begins with twenty rats and randomly assigns them to one of two groups such that there are ten rats in each group. One group of 10 rats is sleep deprived for 24 hours prior to performing in the maze, and the second group of 10 rats is sleep deprived for 36 hours before performing in the maze. The researcher records the length of time (in seconds) it takes for each rat to correctly run the maze. The following data were recorded for each rat in each group:

Group 1 (24 hour deprivation) Group 2 (36 hour deprivation)

8 14

10 12

14 16

12 16

9 12

9 16

13 14

8 15

7 10

11 9

With= .05, complete step 4 of the hypothesis testing procedure, what decision and conclusion should the researcher make?

Group of answer choices

The researcher should retain H0and conclude that there is no correlation between sleep

The researcher should retain H0and conclude that sleep deprivation has no effect on the time it takes to correctly run a maze

The researcher should reject H0and conclude that sleep deprivation has no effect on the time it takes to correctly run a maze

The researcher should reject H0and conclude that sleep deprivation affects the time it takes to correctly run a maze

The researcher should reject HAand conclude that sleep deprivation affects the time it takes to correctly run a maze