A researcher conducted a study investigating the effect of computer screen time on a person's amount of REM sleep. The researcher randomly assigned 100 people into four groups. The first group was given 2 hours of computer screen time each day, the second group was given 4 hours each day, the third group was given 6 hours each day, and the fourth group was given 8 hours each day. The study was conducted for one week, and the amount of REM sleep for each person was measured. What is the explanatory variable in the study?
Answers (1)
Know the Answer?
Not Sure About the Answer?
Get an answer to your question ✅ “A researcher conducted a study investigating the effect of computer screen time on a person's amount of REM sleep. The researcher randomly ...” in 📙 Mathematics if there is no answer or all answers are wrong, use a search bar and try to find the answer among similar questions.
Search for Other Answers
You Might be Interested in
Let f (x) = x^2+2x-35 . Enter the x-intercepts of the quadratic function in the boxes.
Answers (1)
Elmer elementary school has 576 students and 24 teachers. savoy elementary school has 638 students and 29 teachers. which school has the lower unit rate of students per teacher.
Answers (1)
The sum of three numbers is 64. the second number is 3 more than the first. the third number is 11 less than twice the first. find the numbers
Answers (1)
Match the scenarios with terms related to financial aid. A. Megan is planning to pursue an undergraduate degree in chemistry. But since her father lost his job five years ago, the family had been unable to save up enough for Megan's education. B.
Answers (2)
While teresa listened to the radio, there were 9minutes of commercials, 12 minutes of talk, and 29minutes of music what percent of that time was music?
Answers (1)
New Questions in Mathematics
A 10-acre field produced 750 bushels of corn. At that rate, how much corn can be produced from a 14-acre field?
Answers (1)
Deon rented a truck for one day there was a base fee of $20.99, and there was an additional charge of 88 cents for each mile driven deon had to pay 169.71 when he returned the truck for how many miles did he drive the truck
Answers (1)
Carla earns $13 an hour cleaning house. How much will she earn if she works from 8:00 to 2:00?
Answers (2)
If sin θ = 12 over 37, use the Pythagorean Identity to find cos θ.
Answers (1)
What two numbers multiply to - 84 and add to 5
Answers (2)