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 type of error could you be making?

Assume a normal distribution. What is p(z < +2.50)?

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   Positive or negative correlation?

Assume a normal distribution. For the following data: , the probability of a sample mean greater than 85, p(M > 85) = _______.

Scenario: I’m interested in whether there is a relationship between Team (A vs. B) and Outcome (Good vs. Bad). Below are the data.  Test the null hypothesis that the categories are independent.  α= .05. Team A Team B Good Outcome fo = 116 fe = fo = 84 fe = Bad Outcome fo = 64 fe = fo = 36 fe =   The Chi Square test statistic = _____

A normal distribution has a mean of µ = 60 with σ = 5. If a vertical line is drawn through the distribution at X = 65, what proportion of the scores are on the left side of the line?

Scenario: I’m interested in whether there is a relationship between Team (A vs. B) and Outcome (Good vs. Bad). Below are the data.  Test the null hypothesis that the categories are independent.  α= .05. Team A Team B Good Outcome fo = 116 fe = fo = 84 fe = Bad Outcome fo = 64 fe = fo = 36 fe =   degrees of freedom, df = ______, and the Chi Square critical boundary = ______

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 correct APA format for the result would include

Is there a difference among the 3 treatments in the table below?  Test using α = .05  Treatment A Treatment B Treatment C 2 3 7 ∑X2 = 461 2 3 7 G = 75 3 4 8 N = 15 3 5 8 k = 3 5 5 10 SS1 = 6 SS2 = 4 SS3 = 6   What is the value of the critical F boundary?   (from the tables)

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   SP = ____