QUESTION 1A. By convention, it has been determined that alpha levels should be set no larger than

1..05

.2..10.

3..01.

4..50.

B. A researcher is interested in studying the eating behavior of rats and obtains 25 rats to participate in a research study. The group of 25 rats is called a ____.

1. 1.sample2.statistic3.parameter4.population

C. A Type I error means that a researcher has

1. 1.falsely concluded that a treatment has no effect.2.correctly concluded that a treatment has an effect.3.falsely concluded that a treatment has an effect.4.correctly concluded that a treatment has no effect.

D. For scores measured on a nominal scale of measurement (for example, job classification), which measure of central tendency is appropriate?

1. 1.standard deviation2.mode3.median4.mean