Question

5 minutes for a bus. (Reler Table supplied
2) It is generally believed that as people grow older, they find it harder to go to sleep. To test if there
was a difference in time in minutes before people actually went to sleep after lying in the bed. a
sample of 10 young penons (ages 21 to 25) and 10 old persons (ages 65 to 70) was randomly
selected and their sleeping habits were monitored. The data show the number of minutes these
20 persons were awake in bed before getting to sleep:
Young men 58
68 20 15 35 26 +0 47 28
100 152 147 70 40 95 68 90 112 S8
Old men
Is there evidence that young men significantly take more time to get to sleep than old men. Use a -0.05
level of significance. Apply Mann-Whitney U-Test.​

Answer 1

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