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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”?

[example continued…] A normal distribution has μ = 11 and σ = 2. What is the probability of a score less than 7 from this distribution, p(X < 7)?

[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   s(M1-M2) = 

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

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