[Example continued…] The average Instagram user spends 30 minutes per day using Instagram (μ = 30), and σ is unknown. Test whether ARC students who are Instagram users (n = 25, M = 24, SS = 2400) differ from the average Instagram user on number of minutes spent using Instagram per day. α = .05. SM =

For the following data: [µ = 120, σ = 25, n = 25, M = 125], σM = = ____.

[example continued…] Liam’s  Test                                                 Emma’s Test   Liam’s Score: 90                                          Emma’s Score: 93 Class Average: 84                                       Class Average: 85 Standard Deviation: 2.5                               Standard Deviation: 4 Convert Emma’s score into a score on Liam’s test: 

[example continued…] A normal distribution has a mean of µ = 50 with σ = 10. If a vertical line is drawn through the distribution at X = 55, what proportion of the scores are on the right side of the line?

[example continued…] Liam’s  Test                                                 Emma’s Test   Liam’s Score: 90                                          Emma’s Score: 93 Class Average: 84                                       Class Average: 85 Standard Deviation: 2.5                               Standard Deviation: 4   Convert Liam’s score into a score on Emma’s test: 

What is the range for the following set of scores? Scores: 1, 4, 6, 11, 16, 21

I’m interested in whether the playing of prosocial video games in children influences helping behavior.  To answer this question, I randomly assign children into 3 conditions: In Condition 1, children are given a prosocial video game to play (Prosocial Video Game condition), in Condition 2, children are given a violent video game to play (Violent video game condition), and in Condition 3, children are not given any video games to play (No video game condition).  Afterwards, I measure their helping behavior. In this example, the independent variable is

[example continued…] I’m interested in whether the playing of prosocial video games in children influences helping behavior.  To answer this question, I randomly assign children into 3 conditions: In Condition 1, children are given a prosocial video game to play (Prosocial Video Game condition), in Condition 2, children are given a violent video game to play (Violent video game condition), and in Condition 3, children are not given any video games to play (No video game condition).  Afterwards, I measure their helping behavior. In this example, control is achieved by

What is the final step to be performed in the following mathematical expression, (ΣX)2?

A researcher is interested in understanding the social media habits of college students in California. To answer this question, the researcher conducts an online survey of 500 college students in the Sacramento Region. On average they spend 6 hours a week on social media.   The entire group of college students in California is an example of a _________.