The personality trait of “Conscientiousness” (someone who is organized, responsible, and can control their impulses) has μ = 110 and σ = 10. Test whether ARC students (n = 25, M = 117) differ on Conscientiousness. α = .05. What is the null hypothesis (H0)  

[Example continued…] The average YouTube user spends 40 minutes per session, using YouTube (μ = 40), and σ is unknown. Test whether ARC students who are YouTube users (n = 16, M = 38, SS = 960) differ from the average YouTube user on number of minutes spent using YouTube per session. α = .05. s2 =

A normal distribution has μ = 11 and σ = 2. What is the probability of a score greater than 7 from this distribution, p(X > 7)?

[Example continued…] The personality trait of “Conscientiousness” (someone who is organized, responsible, and can control their impulses) has μ = 110 and σ = 10. Test whether ARC students (n = 25, M = 117) differ on Conscientiousness. α = .05. What is the correct result based on the data?

[example continued…] Does training in meditation make a difference for student success?  10 students received training (M1= 88, SS1= 240) and 5 students did not (M2= 82, SS2= 150). Test using α = .05   The degrees of freedom (total) (df) =

What is the correct conclusion based on the following one sample t test result [t(30) = 1.75, p > .05]

Below is data for two variables, X and Y.  Answer the questions that follow.  X Y X-MX Y-MY (X-MX)2 (Y-MY)2 (X-MX)(Y-MY) 3 2 -2 -1 4 1 2 4 2 -1 -1 1 1 ___ 6 4 1 ___ 1 1 1 7 4 2 1 ___ 1 2   MX = _____; MY = _____

For a population with µ = 40 and σ = 10, the Sampling distribution of the Mean, based on n = 25, will have an expected value of the mean = ____

[example continued…] Scenario: 100 people were asked, “What is your favorite type of TV show?” Below are the data.  Test the null hypothesis that the population frequencies for each category are equal.  α= .05. drama comedy action romance fo = 20 fo = 30 fo =40 fo = 10 fe = fe = fe = fe =   Chi Square test statistic = ______

[Example continued…] The average YouTube user spends 40 minutes per session, using YouTube (μ = 40), and σ is unknown. Test whether ARC students who are YouTube users (n = 16, M = 38, SS = 960) differ from the average YouTube user on number of minutes spent using YouTube per session. α = .05. t =     (test statistic)