Mathematics
Mathematics, 11.08.2021 22:50, 7obadiah

A college chemistry teacher wants to know whether taking a practice exam will help her students score higher on their final exam. She
randomly selects 50 students from among the four sections of
Introductory Chemistry that she teaches. Then she randomly divides
them into two groups of 25 students each. Group A will take a practice
exam, and group B will not take a practice exam. After all 50 students
take their final exam, she will compare their results.
Which of these are the treatments in this experiment?
A. Taking a morning chemistry class and taking an afternoon
chemistry class
B. Having taken high school chemistry and not having taken high
school chemistry
C. Being one of the 50 students selected and not being one of the 50
students selected
D. Taking a practice exam and not taking a practice exam

answer
Answers: 2

Other questions on the subject: Mathematics

image
Mathematics, 21.06.2019 15:30, lyndamahe0
Come up with a new linear function that has a slope that falls in the range 10 m − < < . choose two different initial values. for this new linear function, what happens to the function’s values after many iterations? are the function’s values getting close to a particular number in each case?
Answers: 1
image
Mathematics, 21.06.2019 16:30, nockturnal1993
Acarnival sold tickets for $1.50 for adults and $1.00 for students. there were 54 tickets sold for a total of $70.50. write a system of equations to represent the number of adult tickets, x, and the number of student tickets, y. find the solution and explain what it means. i'll you if you me
Answers: 1
image
Mathematics, 21.06.2019 17:00, vanessasmith47
How do i do this activity, is appreciated
Answers: 3
image
Mathematics, 21.06.2019 22:20, guesswhoitis21
Line segment eg is partitioned by point f in the ratio 1: 1. point e is at e (0, 4), and point f is at (1, 3). what are the coordinates of point g? (−1, 5) (2, 2) (3, 1) (4, 0)
Answers: 2
Do you know the correct answer?
A college chemistry teacher wants to know whether taking a practice exam will help her students sco...

Questions in other subjects:

Konu
Mathematics, 07.07.2019 23:00
Konu
Social Studies, 07.07.2019 23:00