A scientist was interested in the success of a newly developed sleep aid called 'Night Owl' on time taken to fall asleep and quality of sleep. She recruited 30 participants who were randomly allocated to receive either a dose of Night Owl or a placebo. The scientist measured the mean time taken for each participant to fall asleep (minutes) and the quality of their sleep (measured on a scale of 1 (poorest quality) to 10 (best possible quality)) over the course of one week.
-What can the scientist conclude from the output below?

A)The type of drug taken had a significant effect on sleep.
B)The type of drug taken had a significant effect on both quality of sleep and time taken to get to sleep.
C)The type of drug taken had a small but significant effect on sleep.
D)Taking Night Owl resulted in less time taken to fall asleep and a significantly better quality of sleep than the placebo.

Question

A scientist was interested in the success of a newly developed sleep aid called 'Night Owl' on time taken to fall asleep and quality of sleep. She recruited 30 participants who were randomly allocated to receive either a dose of Night Owl or a placebo. The scientist measured the mean time taken for each participant to fall asleep (minutes) and the quality of their sleep (measured on a scale of 1 (poorest quality) to 10 (best possible quality)) over the course of one week. 
-What can the scientist conclude from the output below?

A)The type of drug taken had a significant effect on sleep. 
B)The type of drug taken had a significant effect on both quality of sleep and time taken to get to sleep. 
C)The type of drug taken had a small but significant effect on sleep. 
D)Taking Night Owl resulted in less time taken to fall asleep and a significantly better quality of sleep than the placebo.

Quizplus · Accepted Answer

The Answer of A scientist was interested in the success of a newly developed sleep aid called 'Night Owl' on time taken to fall asleep and quality of sleep. She recruited 30 participants who were randomly allocated to receive either a dose of Night Owl or a placebo. The scientist measured the mean time taken for each participant to fall asleep (minutes) and the quality of their sleep (measured on a scale of 1 (poorest quality) to 10 (best possible quality)) over the course of one week. 
-What can the scientist conclude from the output below?

A)The type of drug taken had a significant effect on sleep. 
B)The type of drug taken had a significant effect on both quality of sleep and time taken to get to sleep. 
C)The type of drug taken had a small but significant effect on sleep. 
D)Taking Night Owl resulted in less time taken to fall asleep and a significantly better quality of sleep than the placebo.

A Scientist Was Interested in the Success of a Newly