Please help

A group of researchers is studying the impact of temperature on mood. They randomly assign two groups to spend 15 minutes either in a hot room (defined as 90 degrees) or a cold room (defined as 30 degrees). After the 15 minutes elapsed. a mood measure is completed by participants. Scores on the measure of mood range from 1-20, with higher scores indicating a better mood. Using two-tailed test with an alpha of .05, test for a difference between the groups. What should the null and alternative hypotheses be? 0 Null: People in the cold room will be in a better mood that people in the hot room. Alternative: There is no difference in mood between people in a hot room and a cold room. 6) Null: There is no difference in mood between people in a hot room and a cold room. Alternative: People in the cold room will be in a better mood that people in the hot room. 0 Null: There is a difference in mood between people in a hot room and a cold room. Alternative: There is no difference in mood between people in a hot room and a cold room. 0 Null: There is no difference in mood between people in a hot room and a cold room. Alternative: There is a difference in mood between people in a hot room and a cold room