[R Code]Four people were given different stimuli A, B, and C in random order. And the time taken to react was measured. We would like to find out if there is a difference in reaction time between the three stimuli.1. Using 'friedman.test', write hypothesis, test statistic, significance probability, and interpretation.2. If multiple comparisons are required, implement multiple comparisons and write the results. Why is multi-comparison necessary?Thank you. :)

[R Code] Four people were given different stimuli A. B. and C in random order. And the time taken to react was measured. We would like to nd out if there is a difference in reaction time between the three stimuli. 1. Using friedmantest write hypothesis. test statistic, signicance probability, and interpretation. 2. If multiple comparisons are required, implement multiple comparisons and write the results. Win! is multi-comparison necessary? Thank you. ll