A treatment is administered to a sample of n = 9 individuals selected from a population with a mean of 80 and a standard deviation of 12.  After treatment, the effect size is measured by computing Cohen’s d, and a value of d = 0.50 is obtained.  Based on this information, what is the mean for the treated sample?

What is the standard error of the mean if the standard deviation is 2.6 and the number of individuals is 81?

If a hypothesis test is found to have power = .70, then what is the probability that the test will result in a Type II error?

What proportion of a normal distribution is located between the mean and z = –0.40?

A jar contains 10 red marbles and 30 blue marbles.  A random sample with replacement of n = 3 marbles is selected from the jar.  If the first two marbles are both blue, what is the probability that the third marble will be red?

What is a benefit of sampling without replacement?

Which of the following is NOT always a step for using a Unit Normal Table?

A distribution of scores has µ = 5=80, σ = 42, and is positively skewed. Consider the sampling distribution of the mean for samples of n = 36. a) Explain what a sampling distribution of the means (SDOM) is or how it is created. b) Then list for this sampling distribution the values for the mean and standard error of the mean, and name the shape. Mean = SE of Mean = Shape of Distribution =

For a particular population a sample of n = 4 scores has an expected value of M = 10.  For the same population, a sample of n = 25 scores would have an expected value of µ = ____.

A random sample of n = 36 scores is selected from a population.  Which of the following distributions definitely will be normal?