STAT please just sen me the answers. Question 1 (1 point) a study published in t

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STAT

please just sen me the answers.

Question 1 (1 point) a study published in the January 2008 issue of Behavioral Sleep Medicine that involved a survey of 120 students at St. Lawrence University, a small liberal arts college in upstate New York. Researchers found that students who claimed to have never pulled an all-nighter had an average GPA of 3.1, compared to 2.9 for those students who do claim to have pulled all-nighters. Match the variables and observational units for this study below. 1. Student v Response variable(s) 2. Whether or nut have pulled an all nighter v Explanatory variable(s) 3. GPA Observational unit(s)

Explanation / Answer

Answer:

Q1. Response variable: GPA

Explanatory: whether or not pulled all nighters.

Observations: student.

Q2). True

Q3).

A study where experimental units are randomly assigned to two or more treatment conditions

Q4).

To produce similar groups so any difference in the response variable can be attributed to the explanatory variable.

Q5).

Option 3.

Students were randomly assigned to two groups. One group listened to music while taking math test and one group did not. The ones that did not listen to music scored significantly higher on the math test than the other.

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