A researcher conducts two studies. Each study was a one-sample z test. Both studies placed the rejection region in both tails and measured the same sample mean. The beta level in Study 1 was larger than the beta level used in Study 2. Which study is associated with greater power to detect an effect?

A researcher wants to know the probability of being named on the honor roll from a population where 8% of students are on the honor roll. If the researcher selects a sample of 400 students, then what is the mean number of students expected to be on the honor roll? Hint: This is a binomial distribution, where p = 0.08 and q = 0.92.

A professor finds that the average SAT score among all students attending his college is 1,150 ± 150 (m ± s). He polls his class of 25 students and finds that the average SAT score is 1,200. Suppose he computes a one-sample z test at a .05 level of significance. What is his decision?

Which of the following includes the countries that favor individualistic-oriented cultures?

What happens when interactions occur between people across cultures?

A sampling distribution is a distribution of scores in a population.

Based on the effect size conventions, d = 0.18 is a ______.

A culture is a nondominant cultural group comprised of people who hold common values, beliefs, attitudes, and customs that differ from those of the dominant culture.

A main disadvantage of computing a range is that it takes into consideration only two values regardless of the number of scores in a distribution.

A researcher records the sound (in decibels) during a series of lessons taught by a substitute teacher at a local elementary school. In his study, he found that the sound was 80 ± 6 (M ± SD) dB. Assuming the data are normally distributed, which of the following is an appropriate conclusion?