dr moon believes that college students who usually READCAREFULLu Answer the ques
ID: 3042194 • Letter: D
Question
dr moon believes that college students who usually READCAREFULLu Answer the questions after reading the following: hours of sleep have higher Story Problem: Dr. Moon believes that college students who usually get 7 or more GPAs than students who get usually get less than 7 hours of sleep. Students points for participating in his study. Each student agrees to answer questions on received 2 R their smart phone on 20 random days during the spring semester. One question asks how many hours of sleep the student had the previous night. Students who respond less than 7 hours 50% ofthe time or more are called non-sleepers, those who respond 7 or more hours of sleep 50% of the time or more are called sleepers. Students' semester GPAs are made available to Dr. Moon at the end of the semester. 21. State the null hypothesis (Ho) and the alternative hypothesis (Hi). (4 points) 22. What is the population of interest? (I point) 23. What is the dependent variable? What is the scale of measurement (2 points) 24. What is the independent variable? What is the scale of measurement (2 points) 25. Is this an experiment? Justify your answer. (2 points)Explanation / Answer
21)
Null Hypothesis (H0): Mean GPA of 7 hours or more sleepers is same as the Mean GPA of less than 7 hour sleepers
Alternate Hypothesis (Ha): Mean GPA of 7 hours or more sleepers is greater than Mean GPA of less than 7 hour sleepers
22)
College students
23)
Students GPA.
24)
Independent Variable:
a)Points received by students. He/she receives 2 points for taking participation and 0 points for non-participation in the study.
b)The classification into sleepers and non-sleepers. (Can be a binary variable with 0 as sleepers and 1 as Non-Sleepers)
25)
Yes, this is an experiment as the students are asked question on 20 random days throughout the semester.
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