1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
sertanlavr [38]
3 years ago
12

Determine whether the following study is an observational study or an experiment. If the study is an experiment, identify the co

ntrol and treatment groups, and discuss whether single- or double-blinding is necessary. If the study is observational, state whether it is a case-control study, and if so, identify the cases and controls.
In a study of the effects of magnets on back pain, some participants were treated with magnets while others were given nonmagnetic objects with a similar appearance. The magnets did not appear to be effective in treating back pain. Choose the correct answer below.
A. Experiment, the treatment group is patients that used the magnets and the control group is patients that received the placebo; double blind
B. Observational study; case control; the cases are the patients that received magnets, the controls are the patients that received placebos
C. Observational study; not case-control
D. Experiment, the treatment group is all patients and the control group is patients that received the magnets; single blind
Mathematics
1 answer:
horrorfan [7]3 years ago
6 0

Answer:

A. whether a woman took hormones.

B. whether to woman in the study had a heart attack.

D. access to health care

Step-by-step explanation:

The study conducted to observe the menopausal woman must be supported with their health history. Some woman may have menopause at an early age while other go towards this at a later age. This can be due to smoking, hormone intake, severe diseases like heart attack or cancer and their routine health checkup details. There variables must be observed and included in experiment to reach a conclusion.

You might be interested in
What is the value of x in the equation below?<br> -3-(-8)-(-2) = x<br> O-13<br> O9<br> O 3<br> O 7
posledela

Answer:

7

Step-by-step explanation:

4 0
3 years ago
A jewelry store is having a 40% off sale for all necklaces. During this sale, what is the cost of a necklace that regularly cost
ELEN [110]

Answer: 18 dollars

Step-by-step explanation:

0.40 times 45 = 18 dollars

6 0
2 years ago
How do you find the range in a set of numbers?
Angelina_Jolie [31]

Answer:

first order the data from least to greatest. Then subtract the smallest value from the largest value in the set

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
The value of x in the expression<br> 2x/3 - 7 = 5 is
Andrej [43]

Answer:

The answer is X = 18

Step-by-step explanation:

2x/3 - 7 = 5

Multiply both sides if the equation by 3 : 2x - 21 = 15

Move the constant to the right hand side and change its sign : 2x = 15 + 21

Calculate 2x = 15 + 21

2x = 36

Divide both sides of the eqaution by 2 : 2x = 36

x = 18

Answer X = 18

3 0
3 years ago
Im not sure about this im confused
Maru [420]

Answer:

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Other questions:
  • -7(-5v-3u 4) use the distributive property to remove the parentheses
    6·1 answer
  • For accounting purposes, the value of assets (land, buildings, equipment) in a business depreciates at a set rate per year. The
    5·2 answers
  • What number is 20% of 125
    7·2 answers
  • Three boxes are stacked one on top of other.one box is 5 feet 10 inches tall and one is 6 feet 9 inches tall how high is the sta
    13·2 answers
  • Is this the correct answer? if not, what is it?
    11·1 answer
  • tenho 13 anos e 1,65 de altura, faço exercícios físicos, será que consigo chegar a 1,78? (sou menina) cresço 7 a 10 cm por ano​
    15·1 answer
  • Solve the equation 17=5k-3
    15·2 answers
  • 3x + y = 6<br>pleaae tell me the answer<br>​
    5·1 answer
  • ASAP NEED HELP THX !! Look at picture
    7·1 answer
  • 9 hundred thousands = how many <br> ten thousands
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!