An undergraduate student is coerced into participating in a…

An undergraduate student is coerced into participating in a memory study for extra credit. First, the student is taught to say “waffle” when presented with the nonsense word QEL. After the student demonstrates fluency, the experimenter teaches them to say “treetop” when presented with the nonsense word QEL. Finally, the experimenter says, “Yes, treetop goes with QEL. What else goes with QEL?” The student, despite previously being taught to say “waffle” to fluency, does not provide the correct answer. What is the name for this phenomenon?

A study was designed to investigate the effects of two varia…

A study was designed to investigate the effects of two variables — (1) a student’s level of mathematical anxiety and (2) teaching method — on a student’s achievement in a mathematics course. Students who had a low level of mathematical anxiety were taught using the traditional expository method. These students obtained a mean score of 310 with a standard deviation of 40 on a standardized test. Assuming a mound-shaped and symmetric distribution, in what range would approximately 68% of the students score?

The mean starting salary for nurses is [mu] dollars national…

The mean starting salary for nurses is [mu] dollars nationally. The standard deviation is approximately [s] dollars. The starting salary is not normally distributed. A sample of [n] starting salaries for nurses is taken. What is the probability the average starting salary for this sample is greater than [xbar]?