A researcher records the following times (in seconds)that it took a group of students to complete an exam: 18±2 minutes (M±SD).How long did it take 80% of students to complete the exam?
A)Less than 16 minutes.
B)16.32 minutes.
C)Less than 18 minutes
D)19.68 minutes.

Question

Quizplus · Accepted Answer

The correct answer is D because 80% of the students completed the exam in less than 19.68 minutes.

A Researcher Records the Following Times (In Seconds)that It Took