Use the following information to answer the question. A sprint duathlon consists of a 5 km run, a 20 km bike ride, followed by another 5 km run. The mean finish time of all participants in a recent large duathlon was 1.67 hours with a standard deviation of 0.25 hours. Suppose a random sample of 30 participants was taken and the mean finishing time was found to be
1. hours with a standard deviation of 0.30 hours.
-In this example, the numerical values of 1.67 hours and 0.25 hours are . 
Definitions:
Recency Effect
Recency effect is a memory phenomenon where individuals are more likely to recall the last items in a series better than those in the middle or the beginning.
Student Performance
The outcomes or achievements of students, usually measured through grades, test scores, or other forms of assessment.
Teachers' Expectations
The beliefs or anticipations that educators hold about their students' abilities, which can significantly influence student performance and behavior in the classroom.
Powerful Effect
A significant impact or influence on a person, object, or situation.
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