subject
Mathematics, 09.04.2021 03:30 ralphy34

2.A researcher will conduct a study to investigate whether a certain eye drop is effective in relieving dry eyes. The researcher plans to obtain volunteers from the population of people with dry eyes. Randomly assign half of the people to a group to use the eye drop each day and half the people to a group to use a placebo each day. Observe the number of people who experience relief in each group after one week. a. Suppose the researcher wanted to guarantee a margin of error of no more than 0.04. What is the total number of volunteers required (both treatment groups) in order to guarantee a margin of error less than 0.04

ansver
Answers: 1

Another question on Mathematics

question
Mathematics, 21.06.2019 15:50
Adaycare center charges a $75 enrollment fee plus $100 per week. which of the following represents the cost of sending a child to daycare for 14 weeks?
Answers: 2
question
Mathematics, 21.06.2019 17:30
The sales totals at macy's food store have increased exponentially over the months. which of these best shows the sales in the first three months?
Answers: 2
question
Mathematics, 21.06.2019 18:30
This is my question~~ ( r ^ 4 - 2r ^ 3 - 23 r ^ 2 - 4r - 32)÷(r+4) ~~ i must use long division to solve it : / i was wondering if anyone world like to solve it. and if so, share step-by-step explanations! you! ❤
Answers: 2
question
Mathematics, 21.06.2019 19:00
You and a friend went to the movies.you spent half your money on tickets. then you spent 1/4 of the money on popcorn, $2 on candy, and $3 on a soda. if you have $1 left, hiw much money did u take to the movies?
Answers: 1
You know the right answer?
2.A researcher will conduct a study to investigate whether a certain eye drop is effective in reliev...
Questions
question
Health, 25.11.2020 04:40
question
Mathematics, 25.11.2020 04:40
question
Biology, 25.11.2020 04:40