subject
Mathematics, 02.04.2021 16:20 GhostElite6383

Seventy-five college students are taking part in a study initiated by a large computer manufacturer. The company is designing a new type of laptop computer and has created prototypes of it with two different keyboard designs. They are also including the current design of the laptop in the experiment. Each of the students was randomly assigned to one of the three types of computers. The students are asked to spend 15 minutes on one of the computers performing several tasks (typing words, numbers, making corrections, etc.). The ease of use of the keyboard was then rated on a five-point scale by having the students fill out a short questionnaire. Which of the following was not used in this experiment? a. control
b. replication
c. blocking
d. randomization

ansver
Answers: 1

Another question on Mathematics

question
Mathematics, 21.06.2019 20:40
David estimated he had about 20 fish in his pond. a year later, there were about 1.5 times as many fish. the year after that, the number of fish increased by a factor of 1.5 again. the number of fish is modeled by f(x)=20(1.5)^x. create a question you could ask that could be answered only by graphing or using a logarithm.
Answers: 1
question
Mathematics, 21.06.2019 22:30
What is 1.5% of 120 or what number is 1.5% of 120
Answers: 2
question
Mathematics, 22.06.2019 02:00
Which fraction represents the ratio 35 : 42 in simplest form
Answers: 1
question
Mathematics, 22.06.2019 03:00
Taylor graphs the system below on her graphing calculator and decides that f(x)=g(x) at x=0, x=1, and x=3. provide taylor some feedback that explains which part of her answer is incorrect and why it is incorrect. f(x)=2x+1 g(x)=2x^2+1
Answers: 2
You know the right answer?
Seventy-five college students are taking part in a study initiated by a large computer manufacturer....
Questions
question
Mathematics, 05.12.2019 18:31
question
Biology, 05.12.2019 18:31
question
Advanced Placement (AP), 05.12.2019 18:31
question
History, 05.12.2019 18:31
Questions on the website: 13722360