Stats Exam 2

What is the critical value if ∝ = .05?

State whether the p value would be significant or not, assuming the criterion is at .05: p = .005

State whether H₀ for a two-tailed test would be retained or rejected with the following z scores: z = 2.00

p = 0.05

Cohen's d measures _____.

(Two-tailed test) z = 0.9905

True or False: In a normal distribution, the total area under the curve is equal to 1.0

(Two-tailed test) z = 0.78

Research asks questions about a _____, but actual research uses a _____.

A sampling distribution is a distribution of _____, not _____.

Sampling where the subject is placed back into the pool after being selected is called _____.

p = 0.90

What type of error occurs when the direction does not match in a directional (one-tailed) hypothesis?

(Two-tailed test) z = -2.25

What type of error occurs when you reject the null hypothesis but it should have been retained?

p = 0.10

p = 0.010

True or False: Hypothesis testing is also called effect testing

Which hypothesis are you technically testing in research?

What type of error occurs when you retain the null hypothesis but it should have been rejected?

(One-tailed test, upper right critical) z = -6.45

Sampling where the subject is removed form the pool after being selected is called _____.