A sample of n = 16 scores is selected from a population with µ = 80 with σ = 20.  On average, how much error would be expected between the sample mean and the population mean?

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?

John drives to work each morning and the trip takes an average of 38 minutes.  The distribution of driving times is approximately normal with a standard deviation of 5 minutes.  For a randomly selected morning, what is the probability that John’s drive to work will take less than 35 minutes?

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

What is a benefit of sampling without replacement?

What is the probability of drawing a 5 card (of any suit: hearts, clubs, spades, and diamonds) out of a deck of 52 cards?

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

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

The distribution of sample means ____.

If z-score for a sample mean does not exceeds the critical value set by alpha, what decision do you make?