Mathematics, 08.12.2020 08:20 taylorb9893
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, the 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?
This study uses blocking.
This study uses blinding.
This study uses a control group.
This study uses a repeated measures design.
This study uses random sampling.
Answers: 3
Mathematics, 21.06.2019 19:30
Solve for x and y: 217x + 131y = 913; 131x + 217y = 827
Answers: 1
Mathematics, 21.06.2019 23:10
Statements reasons 1. ab ? cd; ad ? bc 1. given 2. ac ? ac 2. reflexive property 3. ? adc ? ? cba 3. ? 4. ? dac ? ? bca; ? acd ? ? cab 4. cpctc 5. ? dac and ? bca are alt. int. ? s; ? acd and ? cab are alt. int. ? s 5. definition of alternate interior angles 6. ab ? cd; ad ? bc 6. converse of the alternate interior angles theorem 7. abcd is a parallelogram 7. definition of parallelogram what is the missing reason in step 3?
Answers: 2
Mathematics, 21.06.2019 23:30
Graham’s monthly bank statement showed the following deposits and withdrawals. -$25.20, $42.75, -$22.04, -$18.50, $74.11. part a if grahams baldness in the account was $37.86 at the beginning of the month,! 27/4! 2// the account balance at the end of the month? ? plz i will give you 100 points
Answers: 1
A manufacturer claims that its new hand sanitizer reduces the number of days an average person is si...
Mathematics, 21.08.2019 03:00
Mathematics, 21.08.2019 03:00
Biology, 21.08.2019 03:00
Mathematics, 21.08.2019 03:00
Mathematics, 21.08.2019 03:00
Geography, 21.08.2019 03:00
Biology, 21.08.2019 03:00
Chemistry, 21.08.2019 03:00
Mathematics, 21.08.2019 03:00
Biology, 21.08.2019 03:00