subject
Mathematics, 14.04.2021 21:30 TheVariableWhoLived

Select all the correct answers. A manufacturer claims that its new hand sanitizer reduces the number of days an average person is sick in a year. To test this claim, a researcher decided to conduct an experiment. The researcher randomly selected 300 people, divided into subject groups by age. Over the course of a year, all the subjects regularly used the hand sanitizer. At the end of the year, the researcher compared the number of days that the subjects in each group were sick.

Which statements about this experiment are true? (select all the correct answers)
- The study uses blocking
- This study uses random sampling
- This study uses blinding
- This study uses a control group.
- This study uses a repeated measures design.

ansver
Answers: 1

Another question on Mathematics

question
Mathematics, 21.06.2019 18:30
Iwill give ! if māˆ a=59 and māˆ 3=81Ā°, what is māˆ b? māˆ b= _[blank]_Ā°
Answers: 2
question
Mathematics, 21.06.2019 19:30
Abird on top of a 200 ft bridge tower sees a man standing on the lower part of the bridge (which is 50 ft above the ground). the angle of depression from the bird is 26 ĢŠ. how far is the man from the base of the bridge tower? with explanation and pictures .
Answers: 1
question
Mathematics, 21.06.2019 20:50
The cost of turkey is directly proportional to its weight. if a 12-pount turkey costs $27, how much does a 16-pound turkey cost? a. $33.75 b. $36.00 c. $31.00 d. $32.50
Answers: 3
question
Mathematics, 21.06.2019 22:00
Which word in the sentence below is an interrogative pronoun? who is picking us up from school? whousisfrom
Answers: 1
You know the right answer?
Select all the correct answers. A manufacturer claims that its new hand sanitizer reduces the numbe...
Questions
question
Mathematics, 07.06.2021 18:10
question
Mathematics, 07.06.2021 18:10
question
Mathematics, 07.06.2021 18:10
question
Business, 07.06.2021 18:10
question
Mathematics, 07.06.2021 18:10
question
Mathematics, 07.06.2021 18:10
Questions on the website: 13722367