Blog

A class consists of 50 psychology majors, 25 criminal justice majors, and 25 nursing majors.  If one student is randomly selected from the class, what is the probability that the student is a nursing major  p(nursing major)?

[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) =

For the following data: [µ = 80, σ = 24, n = 36, M = 85], σM =  ____

In ANOVA, if the F Ratio = 3.99 and the F critical boundary (from the tables) = 4.26, what conclusion should be drawn? 

A one sample t test has n = 21. If using a two-tail test (proportion in two tails combined) with an alpha = .05, the critical t score boundaries =

[example continued…] For a population with µ = 40 and σ = 10, the Sampling distribution of the Mean, based on n = 25, will have a standard error of the mean = ____

[example continued…] 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 MSbn = ______ MSwn = ______

[example continued…] Assume a normal distribution. For the following data: [µ = 80, σ = 24, n = 36, M = 85], the probability of a sample mean greater than 85, p(M > 85) = _______.

Chi square is used to test __________________ dependent variables. 

[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. Do ARC students differ on “Conscientiousness”?